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Conférence Prof. Jitendra K. Bera

Le 28 juin 2018
À 16h30
Salle Mauve, Institut de Chimie

Dans le cadre des conférences de Chimie Organométallique et Inorganique , nous avons le plaisir d’accueillir le Jeudi 28 Juin à 16h30, Salle Mauve, Institut de Chimie

Prof. Jitendra K. Bera
(Indian Institute of Technology Kanpur, India)

"Bifunctionality in Organometallic Catalysis"

Abstract:
Synergic participation of two or more chemical functionalities in a catalyst is known to facilitate a difficult chemical process. Both metal-metal and metal-ligand cooperation (MLC) strategies have been implemented in organometallic catalysts. Cooperative participation of two metals in close proximity activates small molecules, controls stereo-electronic factors and promotes product elimination. We earlier developed several bimetallic constructs (M-M) and explored their catalytic utility for a wide range of organic transformation reactions. In a new approach, synthetic catalysts are designed where a cooperating ligand in the vicinity of metal site actively participates in bond–activation process and undergoes reversible chemical transformation to make the catalytic process efficient and selective. Carefully designed ligand scaffolds, which hold a metal ion and simultaneously offer a proton-responsive unit, have been devised for water activation, hydrogenation and dehydrogenation reactions. This talk would focus on the scope of bifunctionality in organometallic catalysis with relevant examples.

 

Selected recent publications:
ACS Catal., 2017, 7, 2786; Chem. Eur. J., 2017, 23, 7761; ChemCatChem, 2017, 9, 0000; Organometallics, 2016, 35, 1505; J. Am. Chem. Soc.  2015, 137, 6168; J. Am. Chem. Soc. 2014, 136, 13987; Organometallics, 2015, 34, 3047; Chem. Eur. J. 2014, 20, 16537; Chem. Eur. J. 2014, 20, 6542; Chem. Commun., 2013, 49, 9764.