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Mono-telechelic polymers by catalytic living ring-opening metathesis polymerization with second-generation Hoveyda–Grubbs catalyst

Liu, Peng ; Dong, Zhenghao ; Kilbinger, Andreas F. M.

In: Materials Chemistry Frontiers, 2020, vol. 4, no. 9, p. 2791–2796

The second-generation Hoveyda–Grubbs (HG2) catalyst, which has a small initiation to propagation rate ratio (ki/kp) in ring-opening metathesis polymerization (ROMP), was successfully used in a recently developed catalytic living ROMP. This proved that slow-initiating catalysts can enable ROMP in a living fashion to produce polymers with narrow dispersity and controlled molecular weight. The...

Biotinylated Metathesis Catalysts: Synthesis and Performance in Ring Closing Metathesis

Kajetanowicz, Anna ; Chatterjee, Anamitra ; Reuter, Raphael ; Ward, Thomas

In: Catalysis Letters, 2014, vol. 144, no. 3, p. 373-379

Catalytic living ring-opening metathesis polymerization with Grubbs’ second- and third-generation catalysts

Yasir, Mohammad ; Liu, Peng ; Tennie, Iris K. ; Kilbinger, Andreas F. M.

In: Nature Chemistry, 2019, vol. 11, no. 5, p. 488–494

In a conventional living ring-opening metathesis polymerization (ROMP), an equal number of ruthenium complexes to the number of polymer chains synthesized are required. This can lead to high loadings of ruthenium complexes when aiming for shorter polymers. Here, a reversible chain-transfer agent was used to produce living ROMP polymers from norbornene derivatives using catalytic amounts of...

Hydrogen-bonded metalla-assemblies

Zhang, Fan ; Therrien, Bruno (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Hydrogen bonds are the most utilized non-covalent interactions in biological systems, due to their directionality, stability, reversibility and diversity. The weak strength of hydrogen-bond can be modified by combining several hydrogen bonds in the same unit, like in the melamine∙cyanuric/barbituric acid rosette-type system. Arene ruthenium metalla-assemblies have showed a great biological...

Novel iron tweezers complexes for hydrogenation and polymerization of olefins

Mafua, Roger ; Jenny, Titus A. (Dir.)

Thèse de doctorat : Université de Fribourg, 2006 ; no. 1503.

The use of organometallic complexes as catalysts became a very significant topic in the field of material chemistry. However, despite of this development, only few of them contain iron(II), except the tridentate complex diimine pyridine developed by Gibson and Brookhart and employed in the olefin polymerization. Unfortunately, this model suffers by its lack of tolerance towards the minor changes...

Ru2(CO)4{OOC(CH2) n CH3}2L2 sawhorse-type complexes containing μ2-η2-carboxylato ligands derived from saturated fatty acids

Johnpeter, J. ; Therrien, B.

In: Journal of Structural Chemistry, 2011, vol. 52, no. 1, p. 151-159

Ruthenium Nanoparticles Intercalated in Hectorite: A Reusable Hydrogenation Catalyst for Benzene and Toluene

Süss-Fink, Georg ; Mollwitz, Birgit ; Therrien, Bruno ; Dadras, Massoud ; Laurenczy, Gabor ; Meister, Annette ; Meister, Götz

In: Journal of Cluster Science, 2007, vol. 18, no. 1, p. 87-95

Formylation with "Supercritical” CO2: Efficient Ruthenium-Catalyzed Synthesis of N -Formylmorpholine

Schmid, Leo ; Schneider, Michael ; Engel, Dominique ; Baiker, Alfons

In: Catalysis Letters, 2003, vol. 88, no. 3-4, p. 105-113

Synthesis and Anticancer Activity of Long-Chain Isonicotinic Ester Ligand-Containing Arene Ruthenium Complexes and Nanoparticles

Süss-Fink, Georg ; Khan, Farooq-Ahmad ; Juillerat-Jeanneret, Lucienne ; Dyson, Paul ; Renfrew, Anna

In: Journal of Cluster Science, 2010, vol. 21, no. 3, p. 313-324

Electrochemical modification of the catalytic activity of TiO2/YSZ supported rhodium films

Baranova, E. ; Fóti, G. ; Jotterand, H. ; Comninellis, Ch

In: Topics in Catalysis, 2007, vol. 44, no. 3, p. 355-360