Research field:

Our researches are on both fundamental and applied aspects in tailor-made organometallic compounds, nanostructured hybrid materials and catalysis. Work involves synthesis, testing and characterization of novel organometallic compounds for a wide range of applications particularly in the areas of both green homogeneous and heterogeneous catalysis. Uses of well-defined molecular organometallic compounds as building blocks for synthesis of functional nanomaterials is another part of our scientific focus for generating (nano)structured heterogeneous catalysts and establishing structure activity/reactivity-relationship between homogeneous and heterogenized catalysts.

These studies are ultimately directed toward assessing the roles of organometallics in catalysis (including green and energy chemistry) and developing new catalytic reactions for converting readily available small molecules such as CO₂ and olefins into more valuable products.

This chemistry resulted in the discovery of a number of greener catalysts and new catalytic reactions, such as i) the development of non-toxic and low-cost catalysts for CO₂/epoxide copolymerization (which represents a greener technology in term of energy cost) for the replacement of daily-life oil-based polymers and medicinal application, ii) the production of unique ultra-high molecular weight of polyisoprene for high performance tires, iii) the selective transformation of ethylene into useful building blocks for the downstream refinement of oil (as plasticizers, lubricants and pharmaceuticals products).

His current research is focussed on developing green routes from waste carbon dioxide to a variety of polymers as well as the hydrodeoxygenation of biomass and derivatives into aromatics and cycloalkanes.

NANO200 "Nano Processes and Nano Materials" 2009

KJEM243 "Organometallic and Catalysis" 2008 & 2011-

KJEM122 "Synthetic Inorganic Chemistry" 2016

KJEM123 "Experimental Inorganic Chemistry" 2017-2023

KJEM124 "Chemical Synthesis and Analysis" 2023-

 

Other link:

Norwegian Chemical Society: NKS-Catalyse

CRC Handbook of Chemistry and Physics (93rd Edition, 2012-2013)

Organometallic Chemistry News

Journals Titles and Abbreviations

Master’s thesis

• Erwan Le Roux; Florian Fetzer (2017). Synthesis and Immobilization of Zirconium and Titanium Based Catalyst. (external link)
• Erwan Le Roux; Tamal Roy; Eduard Pogorilyy (2021). Radiometal Based on Titanium-45 for PET-Imaging. (external link)
• Maria Campanyà I Llovet; Erwan Le Roux (2015). Synthesis of Zwitterionic and Tridentate N-Heterocyclic Carbene Lanthanide Complexes. (external link)
• Lore Coenegrachts; Erwan Le Roux; Lalrempuia Ralte (2018). Synthesis and Characterization of Transition Metal Complexes for the Copolymerization of Polar Monomer with CO2. (external link)
• Sharon Bavithra Sebastiampilla; Erwan Le Roux; Jeantelot Gabriel (2020). Hydrodeoxygenation of lignin derived compounds. (external link)
• Erwan Le Roux; Débora Burd Villanova; Lalrempuia Ralte (2016). Synthesis of Bi-functional N-Heterocyclic Carbene Ligands and their Reactivity with Titanium. (external link)
• Julie Hessevik; Erwan Le Roux (2015). N-heterocyclic carbene-titanium complexes and their immobilization onto SBA-15 for the copolymerization of CO₂ with cyclohexene oxide. (external link)
• Erwan Le Roux; Francis Gillis-D’Hamers (2020). Synthesis of catalysts for the production of CO2-based polymers. (external link)
• Thomas Van Kerckhove; Erwan Le Roux (2020). Synthesis of catalysts for the production of CO2-based polymer. (external link)
• Ida Klemmetsrud Isaksen; Erwan Le Roux; Lalrempuia Ralte (2018). N-Heterocyclic Carbene Transition Metal Complexes as Potential Catalysts for Copolymerization of Non-)Polar Monomers with CO2. (external link)
• Erwan Le Roux; Jone Finnestad (2022). Synthesis, Characterization and Catalytic Applications of N-Heterocyclic Carbene Based Vanadium Complexes.. (external link)
• Lennart Gerhard Holzapfel; Erwan Le Roux (2021). Synthesis of N-Heterocyclic Carbene Complexes of Imido Vanadium and Exploring their Catalytic Applications. (external link)
• Morten Grunnaleite Ingebrigtsen; Erwan Le Roux; Gabriel Antoine Alexandre Jeantelot (2022). Selective hydrodeoxygenation of phenolic compounds by oxide-supported iridium nanoparticles. (external link)
• Sara Barranco Campos; Erwan Le Roux; Lalrempuia Ralte (2017). Design of Bifunctionalized N-heterocyclic Carbene Complexes of Titanium for the Copolymerization of Epoxides and CO2. (external link)
• Erwan Le Roux; Jone Finnestad (2020). Synthesis and Characterization of a New Tridentate N-Heterocyclic Carbene Vanadium(V) Complex as a Potential Catalyst for the Copolymerization of CO2 and Cyclohexene Oxide. (external link)
• Erwan Le Roux; Gabriel Jeantelot; Johanna Ilse Sieglinde Manegold (2020). Hydrodeoxygenation of a model compound for lignin-derived species. (external link)
• Simen Prang Følkner; Erwan Le Roux; Vidar Remi Jensen (2019). Synthesis and Characterization of Metal Oxide-Supported Nanoparticles for Hydrodeoxygenation of Phenols and Phenyl Ethers. (external link)
• Frida Breivik; Erwan Le Roux (2015). N-heterocyclic carbene complexes of group 4 and 6 transition metals : synthesis and reactivity towards copolymerisation of CO₂ with cyclohexene oxide. (external link)

Conference lecture

• Tamal Roy; Eduard Pogorilyy; Chubina P. Kumarananthan et al. (2024). Titanium-45-DOTA for PET-imaging. (external link)
• Coralie Celine Quadri; Erwan Le Roux (2015). Tridentate N-Heterocyclic Carbene Titanium Complexes for the Copolymerization of Carbon Dioxide and Cyclohexene Oxide. (external link)
• Gabriel Antoine Alexandre Jeantelot; Simen Prang Følkner; Johanna Ilse Sieglinde Manegold et al. (2022). Reaction Investigation and Support Optimization for the Iridium-Catalyzed Hydrodeoxygenation of Phenols. (external link)
• Gabriel Antoine Alexandre Jeantelot; Simen Prang Følkner; Johanna Ilse Sieglinde Manegold et al. (2022). Reaction Investigation and Support Optimization for the Iridium-Catalyzed Hydrodeoxygenation of Phenols. (external link)
• Erwan Le Roux (2014). New Impetus in Tailor-Made Catalysts Development for the Selective Production of Value-Added Chemicals from Natural Gas. (external link)
• Christian Sant Gjermestad; Iván Flores-Linares; Giovanni Occhipinti et al. (2021). The Role of the Cyclopentadienol Ligand in Ir-catalyzed Deoxygenation of Model Lignin Bio-oil Compounds. (external link)
• Lalrempuia Ralte; Karl Wilhelm Törnroos; Erwan Le Roux (2017). Copolymerization of cyclohexene oxide with CO2 catalyzed by N-heterocyclic carbene group 4 complexes. (external link)
• Andrey Bezrukov; Karl Wilhelm Törnroos; Erwan Le Roux et al. (2018). Metal-organic frameworks with tridentate phosphine linkers. (external link)
• Eduard Pogorilyy; Tamal Roy; Marco Foscato et al. (2024). Exploring the Potential of 45Ti in PET Imaging, Formation and Assessment of the Ti-DOTA Complex. (external link)
• Eduard Pogorilyy; Marco Foscato; Tom Christian Holm Adamsen et al. (2025). Advancing PET Imaging with 45Ti: Synthesis and Characterization of the Ti-DOTA Complex. (external link)
• Lakshmi Suresh; Lalrempuia Ralte; Karl Wilhelm Törnroos et al. (2021). N-heterocyclic carbene complexes of group 4: Synthesis, reactivity and trapping of key intermediates in the copolymerization of CO and epoxides. (external link)
• Erwan Le Roux (2025). Mechanistic and Selectivity Studies of N-Heterocyclic Carbene Pincer Metal Catalysts in CO₂-Derived Polymer Synthesis. (external link)
• Reiner Anwander; Yucang Liang; Erwan LeRoux et al. (2013). Nanostructured catalysts via smart grafting. (external link)
• Erwan Le Roux (2025). Activity, Selectivity and Mechanistic Investigations of Group 4 NHC Pincer Catalysts in the Synthesis of CO2-Based Polymers. (external link)
• Erwan Le Roux (2019). O-functionalized N-heterocyclic Carbene Complexes of Group 4: Synthesis and Reactivity in Copolymerization of Epoxides with CO2. (external link)
• Lalrempuia Ralte; Julie Hessevik; Coralie Celine Quadri et al. (2017). Tridentate N-heterocyclic carbene complexes of group 4: structures, reactivity and activity in the copolymerization of epxides with CO2. (external link)
• Erwan Le Roux (2013). Advances in SOMC onto PMSs: Illustration by Their Reactivity to Catalysis. (external link)
• Lakshmi Suresh; Ralte Lalrempuia; Karl Wilhelm Törnroos et al. (2024). Recent Development in NHC Group 4 Catalysts for the Selective Synthesis of CO2-Based Polymers. (external link)
• Lalrempuia Ralte; Julie Hessevik; Frida Breivik et al. (2016). Copolymerization of Cyclohexene Oxide with CO2 Catalyzed by Tridentate Bis(phenolate) N-Heterocyclic Carbene Complexes of Titanium and Zirconium. (external link)
• Coralie Celine Quadri; Lalrempuia Ralte; Julie Hessevik et al. (2016). N-Heterocyclic Carbene Complexes of Group 4 as a New Class of Catalysts for Copolymerization of Epoxide with CO2. (external link)
• Maria Campanyà I Llovet; Erwan Le Roux (2015). Synthesis of Zwitterionic and Tridentate N-Heterocyclic Carbene Lanthanide Complexes. (external link)
• Erwan Le Roux (2011). From SOMC to Nanostructured Hybrid Materials: A Benefit for Catalysis?. (external link)
• Coralie Celine Quadri; Erwan Le Roux (2014). Titanium(IV) N-Heterocyclic Carbene Complexes as a New Family of Catalyst for Copolymerization of CO2 with Epoxide. (external link)
• Eduard Pogorilyy; Karl Wilhelm Törnroos; Marco Foscato et al. (2025). Advancing PET Imaging with Titanium-45. (external link)
• Christian Sant Gjermestad; Iván Flores-Linares; Giovanni Occhipinti et al. (2021). The Role of the Cyclopentadienol Ligand in Ir-Catalyzed Deoxygenation of Phenols to Aromatics with the Ir(4PhCpOH)(H)2(PPh3) Precursor. (external link)
• Coralie Celine Quadri; Erwan Le Roux (2015). Carbon Dioxide Conversion into Alternated Polycarbonates Catalyzed by a New Class of Catalysts: N-Heterocyclic Carbene Titanium(IV) Complexes. (external link)

Academic article

• Erwan Le Roux; François Nief; Florian Jaroschik et al. (2007). Mono-phosphacyclopentadienyl bis(tetramethylaluminate) lanthanide complexes. (external link)
• Erwan Le Roux; Yucang Liang; Karl Wilhelm Törnroos et al. (2012). Heterogenization of Lanthanum and Neodymium Monophospha-cyclopentadienyl Bis(tetramethylaluminate) Complexes onto Periodic Mesoporous Silica SBA-15. (external link)
• Mostafa Taoufik; Erwan Le Roux; Jean Thivolle-Cazat et al. (2006). Alumina supported tungsten hydrides, new efficient catalysts for alkane metathesis. (external link)
• Erwan Le Roux; Raluca Malacea; Eric Manoury et al. (2007). Highly efficient asymmetric hydrogenation of alkyl aryl ketones catalyzed by iridium complexes with chiral planar ferrocenyl phosphino-thioether ligands. (external link)
• Lalrempuia Ralte; Frida Breivik; Karl Wilhelm Törnroos et al. (2017). Coordination behavior of bis-phenolate saturated and unsaturated N-heterocyclic carbene ligands to zirconium: reactivity and activity in the copolymerization of cyclohexene oxide with CO2. (external link)
• Erwan Le Roux; Olaf Michel; Hanne-Marthe Sommerfeldt et al. (2010). Grafting of peralkylated LnIIAlIII heterobimetallic complexes onto periodic mesoporous silica KIT-6. (external link)
• Nicolas Merle; François Stoffelbach; Mostafa Taoufik et al. (2009). New selective Catalytic Reaction of Direct Transformation of Isobutane to 2,3-Dimethylbutane, Catalyzed by a Metal Hydride Supported on Oxide. (external link)
• Mostafa Taoufik; Erwan Le Roux; Jean Thivolle-Cazat et al. (2007). Direct Transformation of Ethylene into Propylene Catalyzed by a Tungsten Hydride Supported on Alumina: An Example of trifunctional Single-Site Catalysis. (external link)
• Laura Claire Heidkamp Gerber; Erwan Le Roux; Karl Wilhelm Törnroos et al. (2008). Elusive Trimethyllanthanum: Snapshots of Extensive Methyl Group Degradation in La-Al Heterobimetallic Complexes. (external link)
• Lakshmi Suresh; Lalrempuia Ralte; Torstein Fjermestad et al. (2024). Trapping of Key “Ate” Intermediates of NHC-Group IV Relevant to Catalyzing Copolymerization of Cyclohexene Oxide with CO2. (external link)
• Coralie Celine Quadri; Lalrempuia Ralte; Nils Åge Frøystein et al. (2018). Steric factors on unsymmetrical O-hydroxyaryl N-Heterocyclic carbene ligands prevailing the stabilization of single stereoisomer of bis-ligated titanium complexes. (external link)
• Nicolas Merle; Karl Wilhelm Törnroos; Vidar Remi Jensen et al. (2011). Influence of multidentate N-donor ligands on highly electrophilic zinc initiator for the ring-opening polymerization of epoxides. (external link)
• Christian Sant Gjermestad; Shuhei Kusumoto; Ivan Flores Linares et al. (2025). Molecular Insight into Hydrodeoxygenation of Naphthols: Iridium-Catalyzed Ring Hydrogenation and Substrate-Catalyzed Dehydration. (external link)
• Coralie Celine Quadri; Erwan Le Roux (2014). Copolymerization of cyclohexene oxide with CO<sub>2</sub> catalyzed by tridentate N-heterocyclic carbene titanium(iv) complexes. (external link)
• Jérémie Pelletier; Jeff Espinas; Nghiem Vu et al. (2011). A well-defined silica-supported aluminium alkyl through an unprecedented, consecutive two-step protonolysis-alkyl transfer mechanism. (external link)
• Erwan Le Roux; Mostafa Taoufik; Christophe Copéret et al. (2005). Development of W-based heterogeneous alkane metathesis catalysts through a structure-activity relationship. (external link)
• Erwan Le Roux; Mostafa Taoufik; Anne Baudouin et al. (2007). Silica-Alumina-Supported, Tungsten-Based Heterogeneous Alkane Metathesis Catalyst: Is it Closer to a Silica- or an Alumina-Supported System?. (external link)
• Nicolas Merle; Mostafa Taoufik; Morad Nayer et al. (2008). Development of a well-defined silica-supported tungstenocarbyne complex as efficient heterogeneous catalyst for alkyne metathesis. (external link)
• Cherif Larabi; Nicolas Merle; Frédéric Lequemener et al. (2018). New synthetic approach towards well-defined silica supported tungsten bis-oxo, active catalysts for olefin metathesis. (external link)
• Erwan Le Roux; Aimery De Mallmann; Nicolas Merle et al. (2015). Immobilization of heteroleptic bis(oxazoline) zinc catalysts on SBA-15 for asymmetric hydrosilylation. (external link)
• Andrey Bezrukov; Karl Wilhelm Törnroos; Erwan Le Roux et al. (2018). Incorporation of an intact dimeric Zr<sub>12</sub> oxo cluster from a molecular precursor in a new zirconium metal-organic framework. (external link)
• Lakshmi Suresh; Lalrempuia Ralte; Jonas Brattebø Ekeli et al. (2020). Unsaturated and Benzannulated N-Heterocyclic Carbene Complexes of Titanium and Hafnium: Impact on Catalysts Structure and Performance in Copolymerization of Cyclohexene Oxide with CO2. (external link)
• Julie Hessevik; Lalrempuia Ralte; Hajar Nsiri et al. (2016). Sterically (un)encumbered mer-tridentate N-heterocyclic carbene complexes of titanium(IV) for the copolymerization of cyclohexene oxide with CO2. (external link)
• Yin Chen; Emmanuel Callens; Edy Abou-Hamad et al. (2012). [(≡SiO)TaVCl2Me2]: A Well-Defined Silica-Supported Tantalum(V) Surface Complex Precursor for the Selective Cocatalyst-Free Trimerization of Ethylene. (external link)
• K. C. Szeto; S. Norsic; L. Hardou et al. (2010). Non-oxidative coupling of methane catalysed by supported tungsten hydride onto alumina and silica–alumina in classical and H2 permeable membrane fixed-bed reactors. (external link)
• Christian Sant Gjermestad; Shuhei Kusumoto; Giovanni Occhipinti et al. (2025). Hydrodeoxygenation of Naphthols by the Crabtree-Inspired IrH(COD)(PPh3)2. (external link)
• Coralie Celine Quadri; Lalrempuia Ralte; Julie Hessevik et al. (2017). Structural Characterization of Tridentate N‑Heterocyclic Carbene Titanium(IV) Benzyloxide, Silyloxide, Acetate, and Azide Complexes and Assessment of Their Efficacies for Catalyzing the Copolymerization of Cyclohexene Oxide with CO2. (external link)
• Jean-Marie Basset; Christophe Copéret; Erwan Le Roux et al. (2005). Primary products and Mechanistic Considerations in Alkane Metathesis. (external link)
• Erwan Le Roux; Mostafa Taoufik; Mathieu Chabanas et al. (2005). Well-defined tungstenocarbyne complexes supported on partially dehydroxylated silica: the effect of the temperature of dehydroxylation on surface structures. (external link)
• Lalrempuia Ralte; Jarl Underhaug; Karl Wilhelm Törnroos et al. (2019). Anionic hafnium species: an active catalytic intermediate for the coupling of epoxides with CO2?. (external link)
• Erwan Le Roux; Yucang Liang; Reiner Anwander (2018). Silica-Grafted Neodymium Catalysts for the Production of Ultra-High Molecular Weight 1,4-cis-Polyisoprene. (external link)
• Erwan Le Roux; Nicolas Merle; Karl Wilhelm Törnroos (2011). Synthesis and characterisation of trigonal C-2-chiral di- and tetra-substituted bis(oxazoline) alkyl zinc complexes and their reactivity towards protic reagents. (external link)
• Lakshmi Suresh; Jone Finnestad; Karl Wilhelm Törnroos et al. (2021). Bis(Phenolate)-Functionalized N-Heterocyclic Carbene Complexes of Oxo- and Imido-Vanadium(V). (external link)
• Tamal Roy; Eduard Pogorilyy; Chubina Pathma Kumarananthan et al. (2024). Synthesis and stability of the [⁴⁵Ti]Ti-DOTA complex: en route towards aza-macrocyclic ⁴⁵Ti-based radiopharmaceuticals. (external link)
• Jérôme joubert; Françoise Delbecq; Philippe Sautet et al. (2006). Molecular Understanding of Alumina Supported Single-Site Catalysts by a Combination of Experiment and Theory. (external link)
• Sophie Soigner; Guillaume Saggio; Erwan Le Roux et al. (2006). Tantalum hydrides supported on MCM-41 mesoporous silica: activation of methane and thermal evolution of the tantalum-methyl species. (external link)
• Erwan Le Roux; Mathieu Chabanas; Anne Baudouin et al. (2004). Detailed Structural Investigation of the Grafting of [Ta(dCHtBu)(CH2tBu)3] and [Cp*TaMe4] on Silica Partially Dehydroxylated at 700 °C and the Activity of the Grafted Complexes toward Alkane Metathesis. (external link)
• Laura Claire Heidkamp Gerber; Erwan Le Roux; Karl Wilhelm Törnroos et al. (2008). Elusive Trimethyllanthanum: Snapshots of Extensive Methyl Group Degradation in La–Al heterobimetallic Complexes. (external link)
• Yassine Bouhoute; Iker del Rosal; Kai Chung Szeto et al. (2016). Modification of silica-supported tungsten neosilyl oxo precatalysts: impact of substituted phenol on activity and stability in olefin metathesis. (external link)
• Popoff Nicolas; Jeff Espinas; Olivier Boyron et al. (2011). Shifting from Ziegler-Natta to Philips-Type Catalyst? A Simple and Safe Access to Reduced Titanium Systems for Ethylene Polymerization. (external link)
• Gabriel Antoine Alexandre Jeantelot; Simen Prang Følkner; Johanna Ilse Sieglinde Manegold et al. (2022). Selective Hydrodeoxygenation of Lignin-Derived Phenols to Aromatics Catalyzed by Nb<inf>2</inf>O<inf>5</inf>-Supported Iridium. (external link)
• Coralie Celine Quadri; Karl Wilhelm Törnroos; Erwan Le Roux (2017). Di-µ-chlorido-bis{bis[N,N-bis(trimethylsilyl)amido]- titanium(III)}. (external link)
• Yin Chen; Emmanuel Callens; Edy Abou-Hamad et al. (2012). [( SiO)(TaCl2Me2)-Cl-V]: A Well-Defined Silica-Supported Tantalum(V) Surface Complex as Catalyst Precursor for the Selective Cocatalyst-Free Trimerization of Ethylene. (external link)
• Erwan Le Roux; Yucang Liang; Michael P. Storz et al. (2010). Intramolecular hydroamination/cyclization of aminoalkenes catalyzed by Ln[N(SiMe3)2]3 grafted onto periodic mesoporous silicas. (external link)
• Jeff Espinas; Jérémie Pelletier; Kai Chung Szeto et al. (2014). Preparation and characterization of metallacalixarenes anchored to a mesoporous silica SBA-15 LP as potential catalysts. (external link)
• Lakshmi Suresh; Kathrin Zwettler; Karl Wilhelm Törnroos et al. (2025). N-Heterocyclic Carbene-Based Group 4 Catalysts for the Terpolymerization of Cyclohexene Oxide and Cyclic Anhydrides with CO2. (external link)

Conference poster

• Lalrempuia Ralte; Karl Wilhelm Törnroos; Erwan Le Roux (2018). Group 4 N-​Heterocyclic Carbene Complexes: Trapping of Relevant Intermediates to the Copolymerization of Cyclohexene Oxide with CO2. (external link)
• Raju Dey; Giovanni Occhipinti; Vidar Remi Jensen et al. (2018). A niobia-supported iridium-based catalyst for deoxygenation of lignin-derived model compounds. (external link)
• Simen Prang Følkner; Raju Dey; Giovanni Occhipinti et al. (2018). A Nb2O5-Supported Iridium-Based Catalyst for Hydrodeoxygenation of Lignin-Derived Model Compounds. (external link)
• Lakshmi Suresh; Ralte Lalrempuia; Karl Wilhelm Törnroos et al. (2022). NHC-Hafnium Catalysts as Key Intermediates for the Copolymerisation of Epoxide with CO2. (external link)
• Rannveig Litlabø; Melanie Zimmermann; Erwan Le Roux et al. (2006). Tetramethylaluminate Coordination Modes in Lanthanide Complexes. (external link)
• Christian Sant Gjermestad; Iván Flores-Linares; Giovanni Occhipinti et al. (2022). Highly Selective Hydrodeoxygenation of Phenols to Aromatics: The Quest for the Active Species. (external link)
• Erwan Le Roux (2013). Advances in SOMC onto PMSs: Illustration by Their Reactivity to Catalysis. (external link)
• Tamal Roy; Eduard Pogorilyy; Chubina P. Kumarananthan et al. (2024). Unlocking the Potential of 45Ti for PET-imaging: The Formation and Evaluation of the Ti-DOTA Complex. (external link)
• Tamal Roy; Eduard Pogorilyy; Chubina P. Kumarananthan et al. (2024). Titanium-45-DOTA for PET-imaging: L'enfant Terrible. (external link)
• Lalrempuia Ralte; Frida Breivik; Karl Wilhelm Törnroos et al. (2016). Synthesis of Unsaturated Versus Saturated NHC Bis(Phenolate) Zirconium Complexes and Their Activity in the Copolymerization of Cyclohexene Oxide with CO2. (external link)
• Lalrempuia Ralte; Frida Breivik; Karl Wilhelm Törnroos et al. (2016). Copolymerization of Cyclohexene Oxide with CO2 Catalyzed by N-Heterocyclic Carbene Zirconium Complexes. (external link)
• Lalrempuia Ralte; Karl Wilhelm Törnroos; Erwan Le Roux (2018). Ν−Heterocyclic Carbene Titanium(IV) and Zirconium(IV) Catalysts for the Copolymerization of Cyclohexene Oxide with CO2. (external link)
• Erwan Le Roux; Yucang Liang; Florian Jaroschik et al. (2007). Mono-Phosphacyclopentadienyl Bis(tetramethylaluminate) Rare-Earth Metal Complexes. (external link)
• Gabriel Antoine Alexandre Jeantelot; Simen Prang Følkner; Johanna Ilse Sieglinde Manegold et al. (2021). Selective hydrodeoxygenation of phenols by Nb2O5-supported iridium. (external link)
• Tamal Roy; Eduard Pogorilyy; Chubina Pathma Kumarananthan et al. (2025). Reactivity of Aza-Macrocycle Chelators with Titanium and Radiolabeling of DOTA with Titanium-45. (external link)
• Erwan Le Roux (2014). New Impetus in Tailor-Made Catalysts Development for the Selective Production of Value-Added Chemicals from Natural Gas. (external link)
• Lalrempuia Ralte; Karl Wilhelm Törnroos; Erwan Le Roux (2018). Key Intermediates in Ν−Heterocyclic Carbene Complexes of Group 4 Relevant to the Copolymerization of Cyclohexene Oxide with CO2. (external link)
• Simen Prang Følkner; Raju Dey; Giovanni Occhipinti et al. (2019). A Nb2O5-Supported Iridium-Based Catalyst for Hydrodeoxygenation of Lignin-Derived Model Compounds. (external link)
• Rannveig Litlabø; Melanie Zimmermann; Erwan Le Roux et al. (2006). Tetramethylaluminate Coordination Modes in Lanthanide Complexes. (external link)
• Lore Coenegrachts; Lalrempuia Ralte; Ainara Nova et al. (2018). Synthesis and Characterization of Transition Metal Complexes for the Copolymerization of Polar Monomer with CO2. (external link)
• Raju Dey; Giovanni Occhipinti; Vidar Remi Jensen et al. (2018). Platinum Nanoparticles Immobilized on Alumina: A Highly Selective, Reusable Catalyst for the Hydrogenation of Arenols and Aryl ethers Under Mild and Neat Reaction Conditions. (external link)
• Simen Prang Følkner; Raju Dey; Giovanni Occhipinti et al. (2018). A Niobia-Supported Iridium-Based Catalyst for Deoxygenation of Lignin-Derived Model Compounds. (external link)
• Raju Dey; Simen Prang Følkner; Giovanni Occhipinti et al. (2018). A niobia-supported iridium-based catalyst for deoxygenation of lignin-derived model compounds. (external link)

Bachelor’s thesis

• Gina Michelle Stöck; Erwan Le Roux; Tamal Roy (2023). Study of Tetraazamacrocyclic Chelators as Potential Ligands for Titanium-45 Radiopharmaceuticals. (external link)
• Kathrin Zwettler; Erwan Le Roux (2024). Investigation of NHC-complexes in Terpolymerization. (external link)
• Erwan Le Roux; Lander Jacobs; Leif Eric Hertwig (2025). Synthesis and Characterization of New Catalysts for the Conversion of N2 to NH3. (external link)
• Jan Felix Locher; Erwan Le Roux (2023). Production of CO2-Based Polymers Catalyzed by Transition Metal Complexes. (external link)
• Erwan Le Roux; Eduard Pogorilyy; Sara Ramos Ortiz (2025). Synthesis and Complexation of Ti-DOTAGA. (external link)
• Senne Kooreman; Erwan Le Roux (2023). Vanadium Complexes as Catalysts for the Copolymerization of cyclic Anhydride and Epoxides. (external link)

Media interview

• Erwan Le Roux; Øystein Rygg Haanæs (2019). Grønn kjemi som slår to fluer i en smekk. (external link)
• Erwan Le Roux; Øystein Rygg Haanæs (2019). Grønn kjemi som slår to fluer i en smekk. (external link)

Professional article

• Erwan Le Roux; Stian Svelle (2016). Bergen 2015: Det 15. norske katalysesymposiet. (external link)

Conference abstract

• Reiner Anwander; Yucang Liang; Erwan Le Roux et al. (2013). Nanostructured catalysts via smart grafting. (external link)

Academic book chapter

• Christophe Fliedel; Samuel Dagorne; Erwan Le Roux (2021). Metal Complexes as Catalysts/Moderators for Polymerization Reactions. (external link)
• Erwan Le Roux; Reiner Anwander (2009). Advances in Surface Organo-Actinide and Lanthanide Chemistry. (external link)
• Erwan Le Roux (2015). Titanium-based Catalysts for Polymer Synthesis. (external link)

Academic literature review

• Erwan Le Roux (2016). Recent advances on tailor-made titanium catalysts for biopolymer synthesis. (external link)

Other presentation

• Kristine Spildo; John Georg Seland; Erwan Le Roux (2025). Realfagdag i Amalie Skram. (external link)

Lecture

• Roy Tamal; Erwan Le Roux (2021). Radiometal based on 45Ti for PET imaging. (external link)

Doctoral thesis (PhD)

• Coralie Celine Quadri; Erwan Le Roux; Pascal D.C. Dietzel (2018). N-Heterocyclic Carbene Complexes of Titanium as a Novel Class of Catalysts for the Copolymerization of Cyclohexene Oxide with CO2. (external link)
• Lakshmi Suresh; Erwan Le Roux; Karl Wilhelm Törnroos (2025). N-Heterocyclic Carbene Pincer Complexes of Group IV and Vanadium for CO2-Based Polymerization Catalysis. (external link)

Popular science article

• Erwan Le Roux; Mali Husby Rosnes (2025). Plast fra CO2: Hvordan kan katalysatorteknologi være vendepunktet for å lage grønnere polykarbonater?. (external link)

See a complete overview of publications in Cristin.

Publications

1- E. Le Roux, M. Chabanas, A. Baudouin, A. de Mallmann, C. Copéret, E. A. Quadrelli, J. Thivolle-Cazat, J.-M. Basset, W. Lukens, A. Lesage, L. Emsley, G. J. Sunley. "Detailed Structural Investigation of the Grafting of [Ta(=CHtBu)(CH₂tBu)₃] and [Cp*Ta(CH₃)₄] on Silica Partially Dehydroxylated at 700°C and the Activity of the Grafted Complexes toward Alkane Metathesis", J. Am. Chem. Soc., 2004, 126, 13391.

2- J.-M. Basset, C. Copéret, L. Lefort, B. M. Maunders, O. Maury, E. Le Roux, G. Saggio, S. Soignier, D. Soulivong, G. J. Sunley, M. Taoufik, J. Thivolle-Cazat. "Primary Products and Mechanistic Considerations in Alkane Metathesis", J. Am. Chem. Soc., 2005, 127, 8604.

3- E. Le Roux, M. Taoufik, M. Chabanas, D. Alcor, A. Beaudoin, C. Copéret, J. Thivolle-Cazat, J.-M. Basset, A. Lesage, S. Hediger, L. Emsley. "Well-Defined Surface Tungstenocarbyne Complexes through the Reaction of [W(≡CtBu)(CH₂tBu)₃] with Silica", Organometallics, 2005, 24, 4274.

4- E. Le Roux, M. Taoufik, C. Copéret, A. de Mallmann, J. Thivolle-Cazat, J.-M. Basset, B. M. Maunders, G. J. Sunley. "Development of Tungsten-Based Heterogeneous Alkane Metathesis Catalysts Through a Structure-Activity Relationship", Angew. Chem., Int. Ed., 2005, 44, 6755.

5- S. Soigner, M. Taoufik, E. Le Roux, G. Saggio,  F. Lefebvre, A. de Mallmann, J. Thivolle-Cazat, J.-M. Basset, G. J. Sunley, B. M.  Maunders. "Tantalum Hydrides Supported on MCM-41 Mesoporous Silica: Activation of Methane and Thermal Evolution of the Tantalum-Methyl species", Organometallics, 2006, 25, 1569.

6- M. Taoufik, E. Le Roux, C. Copéret, J. Thivolle-Cazat, J.-M. Basset, B. M. Maunders, G. J. Sunley. "Alumina Supported Tungsten Hydrides, New Efficient Catalysts for Alkane Metathesis", Top. Catal., 2006, 40, 65.

7- J. Joubert, F. Delbecq, P. Sautet, E. Le Roux, M. Taoufik, C. Thieuleux, F. Blanc, C. Copéret, J. Thivolle-Cazat, J.-M. Basset. "Molecular Understanding of Alumina Supported Single-Site Catalysts by a Combination of Experiment and Theory", J. Am. Chem. Soc., 2006, 128, 9157.

8- E. Le Roux, M. Taoufik, A. Baudouin, C. Copéret, J. Thivolle-Cazat, J.-M. Basset, G. J. Sunley, B. M. Maunders. "Silica-Alumina-Supported, Tungsten-Based Heterogeneous Alkane Metathesis Catalyst: Is it Closer to a Silica- or an Alumina-Supported System?", Adv. Synth. Catal. 2007, 349, 231.

9- E. Le Roux, R. Malacea, E. Manoury, R. Poli, L. Gonsalvi, M. Peruzzini. “Highly Efficient Asymmetric Hydrogenation of Alkyl Aryl Ketones Catalyzed by Iridium Complexes with Chiral Planar Ferrocenyl Phosphino-Thioether Ligands”, Adv. Synth. Catal. 2007, 349, 309.

10- M. Taoufik, E. Le Roux, J. Thivolle-Cazat, J.-M. Basset. "Direct Transformation of Ethylene into Propylene Catalyzed by a Tungsten Hydride Supported on Alumina: An Example of Trifunctional Single-Site Catalysis", Angew. Chem. Int., Ed. Engl., 2007, 46, 7202. Selected as ”Very Important Paper” by the Editors of Angew. Chem.

11- E. Le Roux, F. Nief,F. Jaroschik, K. W. Törnroos, R. Anwander. "Mono-Phosphacyclopentadienyl Bis(tetramethylaluminate) Lanthanide Complexes", Dalton Trans., 2007, 4866.

12- N. Merle, M. Taoufik, M. Nayer, E. Le Roux,  R. M. Gauvin,  F. Lefebvre, J. Thivolle-Cazat, J.-M. Basset. "Development of a Well-Defined Silica-Supported Tungstenocarbyne Complex as Efficient Heterogeneous Catalyst for Alkyne Metathesis", J. Organomet. Chem., 2008,693, 1733.

13- C. H. Gerber, E. Le Roux, K. W. Törnroos, R. Anwander. "Elusive Trimethyllanthanum: Snapshots of Extensive Methyl Group Degradation in La–Al Heterobimetallic Complexes”, 2008, Chem. Eur. J., 14, 9555.

14- N. Merle, F. Stoffelbach, M. Taoufik, E. Le Roux, J. Thivolle-Cazat, J.-M. Basset. "Selective and Unexpected Transformation of 2-Methylpropane to 2,3-Dimethylbutane and 2-Methylpropene to 2,3-Dimethylbutene Catalyzed by an Alumina-Supported Tungsten Hydride", Chem. Commun., 2009, 2523.

15- K. C. Szeto, S. Norsic, L. Hardou, A. Baudoin, J. Thivolle-Cazat, E. Le Roux, S. Chakka, C. Papaioannou, J.-M. Basset, M. Taoufik. "Non-Oxidative Coupling of Methane Catalysed by Supported Tungsten Hydride onto Alumina and Silica–Alumina in Classical and H₂ Permeable Membrane Fixed-Bed Reactors", Chem. Commun., 2010, 46, 3985.  

16- E. Le Roux, O. Michel, H.-M. Sommerfeldt, Y. Liang, C. Maichle-Mössmer, K. W. Törnroos, R. Anwander. "Grafting of Peralkylated LnII-AlIII Heterobimetallic Complexes onto Periodic Mesoporous Silica KIT-6", Dalton Trans., 2010, 39, 8552. From themed issue Bridging the gap in catalysis via multidisciplinary approaches

17- E. Le Roux, Y. Liang, M. P. Storz, R. Anwander. "Intramolecular Hydroamination/Cyclization of Aminoalkenes Catalyzed by Ln[N(SiMe₃)₂]₃ Grafted onto Periodic Mesoporous Silicas", J. Am. Chem. Soc., 2010, 132,16368.

18- E. Le Roux, N. Merle, K. W. Törnroos. "Synthesis and Characterisation of Trigonal C₂-Chiral Di- and Tetra-Substituted Bis(Oxazoline) Alkyl Zinc Complexes and Their Reactivity Towards Protic Reagents", Dalton Trans., 2011, 40, 1768. 

19- J. Pelletier, J. Espinas, N. Vu, S. Norsic, A. Baudouin, L. Delevoye, J. Trébosc, E. Le Roux, C. Santini, J.-M. Basset, R. M. Gauvin, M. Taoufik. "A Well-Defined Silica-Supported Aluminium Alkyl Through an Unprecedented, Consecutive Two-Step Protonolysis–Alkyl Transfer Mechanism", Chem. Commun., 2011, 47, 2979.

20- N. Merle, K. W. Törnroos, V. R. Jensen, E. Le Roux. "Influence of Multidentate N-Donor Ligands on Highly Electrophilic Zinc Initiator for the Ring-Opening Polymerization of Epoxides", J. Organomet. Chem., 2011,696, 1691.

21- N. Popoff, J. Espinas, E. Gouré, O. Boyron,  E. Le Roux, Gauvin R. M., J.-M. Basset, A. De Mallmann, M. Taoufik. "Shifting from Ziegler-Natta to Philips Catalyst? A Simple and Safe Access to Reduced Titanium Systems for Ethylene Polymerization", Macromol. Rapid Commun., 2011, 32, 1921.

22- E. Le Roux, Y. Liang, K. W. Törnroos, F. Nief,  R. Anwander. "Heterogenization of Lanthanum and Neodymium Monophospha-cyclopentadienyl Bis(tetramethylaluminate) Complexes onto Periodic Mesoporous Silica SBA-15", Organometallics, 2012, 31, 6526.

23- Y. Chen, E. Callens, E. Abou-Hamad, N. Merle, A. White, M. Taoufik, C. Copéret, E. Le Roux, J.-M. Basset. "[(≡SiO)Ta^VCl₂Me₂]: A Well-Defined Silica-Supported Tantalum(V) Surface Complex Precursor for the Selective Cocatalyst-Free Trimerization of Ethylene", Angew. Chem. Int., Ed. Engl., 2012, 51, 11886.

24- J. Espinas , J. Pelletier, K. C. Szeto , N. Merle, E. Le Roux, C. Lucas, A. De Mallmann, J.-M. Basset, M. Taoufik, J. Thivolle-Caza. "Preparation and Characterization of Metallacalixarenes Anchored to a Mesoporous Silica SBA-15 LP as Potential Catalysts", Microporous Mesoporous Mater., 2014, 188, 77-85.

25- C. C. Quadri, E. Le Roux. "Copolymerization of Cyclohexene Oxide with CO₂ Catalyzed by Tridentate N-Heterocyclic Carbene Titanium(IV)", Dalton Trans., 2014, 43, 4242. From themed issue New Talent: Europe

26- E. Le Roux, A. De Mallmann, N. Merles, M. Taoufik,  R. Anwander. "Immobilization of Heteroleptic Bis(oxazoline) Zinc Catalysts on SBA-15 for Asymmetric Hydrosilylation", Organometallics, 2015, 34, 5146.

27- E. Le Roux. "Recent Advances on Tailor-made Titanium Catalysts for Biopolymer Synthesis", Coord. Chem. Rev., 2016, 306, 65.

28 - J. Hessevik, R. Lalrempuia, H. Nsiri, K. W. Törnroos, V. R. Jensen, E. Le Roux. "Sterically (un)Encumbered mer-tridentate N-heterocyclic Carbene Complexes of Titanium(IV) for the Copolymerization of Cyclohexene Oxide with CO₂", Dalton Trans., 2016, 45, 14734. From themed issue Small Molecule Activation

29 - Y. Bouhoute, I. del Rosal, K. Szeto, N. Merle, D. Grekov, A. De Mallmann, E. Le Roux, L. Delevoye, R. Gauvin, L. Maron, M. Taoufik. " Modification of Silica-supported Tungsten Neosilyl Oxo Precatalysts: Impact of Substituted Phenol on Activity and Stability in Olefin Metathesis", Catal. Sci. Technol., 2016, 6, 8532.

30- R. Lalrempuia, F. Breivik, K. W. Törnroos, E. Le Roux. "Coordination Behavior of Bis-phenolate Saturated and Unsaturated N-heterocyclic Carbene Ligands to Zirconium: Reactivity and Activity in the Copolymerization of Cyclohexene Oxide with CO₂", Dalton Trans., 2017, 46, 8065.

31- C. C. Quadri, K. W. Törnroos, E. Le Roux. "Di-µ-chlorido-bis{bis[N,N-bis(trimethylsilyl)amido]-titanium(III)}", IUCrData, 2017, 2, x171488.

32- C. C. Quadri, R. Lalrempuia, J. Hessevik, K. W. Törnroos, E. Le Roux. "Structural Characterization of Tridentate N-Heterocyclic Carbene Titanium(IV) Benzyloxide, Silyloxide, Acetate, and Azide Complexes and Assessment of Their Efficacies for Catalyzing the Copolymerization of Cyclohexene Oxide with CO₂", Organometallics, 2017, 36, 4477.

33- C. Larabi, N. Merle, F. Lequemener, P. Rouge, E. Berrier, R. M. Gauvin, E. Le Roux, A. de Mallmann, K. C. Szeto, M. Taoufik. "New Synthetic Approach Towards Well-defined Silica Supported Tungsten Bis-oxo, Active Catalysts for Olefin Metathesis", Catal. Commun., 2018, 108, 51.

34- C. C. Quadri, R. Lalrempuia, N. Å. Frøstein, K. W. Törnroos, E. Le Roux. "Steric Factors on Unsymmetrical O-Hydroxyaryl N-heterocyclic Carbene Ligands Prevailing the Stabilization of Single Stereoisomer of Bis-ligated Titanium Complexes", J. Organomet. Chem., 2018, 860, 106.

35- A. A. Bezrukov, K. W. Törnroos, Erwan Le Roux, P. D. C. Dietzel. "Incorporation of an Intact Dimeric Zr₁₂ Oxo Cluster from a Molecular Precursor in a New Zirconium Metal–organic Framework", Chem. Commun., 2018, 54, 2735.

36- E. Le Roux, Y. Liang, R. Anwander. "Silica-Grafted Neodymium Catalysts for the Production of Ultra-High Molecular Weight 1,4-cis-Polyisoprene", ChemCatChem, 2018, 10, 1905. Special Issue on “Supported Molecular Catalysts”.

37- R. Lalrempuia, J. Underhaug, K. W. Törnroos, E. Le Roux. "Anionic hafnium species: an active catalytic intermediate for the coupling of epoxides with CO₂?", Chem. Commun., 2019, 55, 7227.

38- L. Suresh, R. Lalrempuia, J. B. Ekeli, F. Gillis-D'Hamers, K. W. Törnroos, V. R. Jensen, E. Le Roux. "Unsaturated and Benzannulated N-Heterocyclic Carbene Complexes of Titanium and Hafnium: Impact on Catalysts Structure and Performance in Copolymerization of Cyclohexene Oxide with CO₂", Molecules, 2020, 25, 4364. Special Issue on "Carbon Ligands: From Fundamental Aspects to Applications"

39- L. Suresh, J. Finnstad, K. W. Törnroos, E. Le Roux. "Bis(phenolate)-Functionalized N-Heterocyclic Carbene Complexes of Oxo- and Imido-Vanadium(V)", Inorg. Chim. Acta, 2021, 521, 120301. Special Issue on "Maurizio Peruzzini: a protagonist in Transition Metal Chemistry"

40- G. Jeantelot, S. P. Følkner, J. I. S. Manegold, M. G. Ingebrigtsen,, V. R. Jensen, E. Le Roux. "Selective Hydrodeoxygenation of Lignin-Derived Phenols to Aromatics Catalyzed by Nb₂O₅-Supported Iridium", ACS Omega, 2022, 7, 35, 31561.

41-R. Tamal, E. Pogorilyy, C. P. Kumarananthan, U. A. Kvitastein, M. Foscato, K. W. Törnroos, T. C. H. Adamsen, E. Le Roux. "Synthesis and Stability of the [⁴⁵Ti]Ti–DOTA Complex: en Route Towards Aza-macrocyclic ⁴⁵Ti-based Radiopharmaceuticals", Chem. Commun., 2024, 60, 7148.

42-L. Suresh, R. Lalrempuia, T. Fjermestad, K. W. Törnroos, J. Bour, G. Frache, Nova, Ainara, E. Le Roux. "Trapping of Key “Ate” Intermediates of NHC-Group IV Relevant to Catalyzing Copolymerization of Cyclohexene Oxide with CO₂", Organometallics, 2025, 44, 68. 

43-C. S. Gjermestad, S. Kusumoto, I. Flores-Linares, G. Occhipinti, E. Le Roux, H. Ando, K. Nozaki, V. R. Jensen. "Molecular Insight into Hydrodeoxygenation of Naphthols: Iridium-Catalyzed Ring Hydrogenation and Substrate-Catalyzed Dehydration" Organometallics, 2025, 44, 536.

44-L. Suresh, K. Zwettler, K. W. Törnroos, W. Le, B. Marcolini, G. Frache, E. Le Roux. "N-Heterocyclic Carbene-Based Group 4 Catalysts for the Terpolymerization of Cyclohexene Oxide and Cyclic Anhydrides with CO₂", ACS Org. Inorg. Au, 2025, 5, 3, 171.

 

Patents

1- J.-M. Basset, J. Thivolle-Cazat, M. Taoufik, E. Le Roux, C. Copéret. "Process for the Metathesis of Alkenes Using a Catalyst Comprising Alumina which has been Surface Grafted with Tungsten Hydride Moieties", FR 2872509, WO2006013263, 2004.

2- J.-M. Basset, M. Taoufik, E. Le Roux, J. Thivolle-Cazat, C. Copéret. "Catalytic Process for Converting Ethylene into Propylene", FR 2872510, WO2006013251, 2004.

 

Book Chapters

1- E. Le Roux, R. Anwander. "Surface Organolanthanide and -Actinide Chemistry",in Modern Surface Organometallic Chemistry, (Eds.J.-M. Basset, R. Pasro, D. Roberto, R. Ugo), VCH  Verlagsgesellschaft GmbH. Weinheim, 2009, P 455-512.

2- E. Le Roux. "Titanium-based Catalysts for Polymer Synthesis", in Sustainable Catalysis: With Non-endangered Metals, Part 1, (Ed. M. North), The Royal Society of Chemistry. Cambridge, 2015, P 116-139. 

3- C. Fliedel, S. Dagorne, E. Le Roux. "Metal Complexes as Catalysts/Moderators for Polymerization Reactions", in Comprehensive Coordination Chemistry III (Ed. E. C. Constable, G. Parkin, L. Que Jr), Elsevier. New York, 2021, P 410-464. 

 

PhD thesis

E. Le Roux "New Generation of Tantalum and Tungsten Based Catalysts Supported on Oxides for Alkane Metathesis", N° 192-2004, 2004, P 272.

Projects for Master thesis

The research group is interdisciplinary and is stimulated by several research areas such as:

- Design and synthesis of organic ligands and organometallic compounds

- Synthesis of nanostructured hybrid materials

- Homogeneous and heterogeneous catalysis (including green and energy chemistry):

• a) for the production of green plastic (polymerization reactions with CO₂)
• b) for the oligomerization of olefins
• c) for the synthesis of pharmaceuticals or fine chemicals (organic transformations)
• d) for the hydrodeoxygenation of biomass and derivatives into aromatics and cycloalkanes                                                                            

Keywords: Inorganic/Organometallic Chemistry, Nanostructured Hybrid Materials, Green Chemistry, Catalysis (polymerization, oligomerization, hydrodeoxygenation and organic transformation).

 

Funding:

The Nanoscience programme at the University of Bergen

The Research Council of Norway (FRINATEK, ENERGIX)

 

Vacant position (PhD and Post-doc):

Please note that for your application to be considered, you must fill in the University of Bergen's application form which can be found at our "vacant positions" web-page: https://www.uib.no/positions