MOLYBDENUM AND PLATINUM N-HETEROCYCLIC CARBENE COMPLEXES AND THEIR CATALYTIC AND LUMINESCENT PROPERTIES

Abstract

N-HETEROCYCLIC CARBENES HAVE ATTRACTED TREMENDOUS RESEARCH INTEREST AS PROMISING LIGAND IN TRANSITION METAL COMPLEXES IN THE STUDY OF OXIDATION CATALYSIS AND LUMINESCENT PROPERTIES. IN THIS THESIS, MO-NHC CHEMISTRY, A SERIES OF NEW BENZOTHIAZOLYL IMIDAZOLIUM SALTS, CORRESPONDING AG(I)-NHC COMPLEXES FOR TRANSMETALATION REACTION, IONIC CPMO(II) CARBONYL COMPLEXES, AND MO(0) AND DIIODO MO(II) CARBONYL COMPLEXES BEARING N,C-CHELATING BENZOTHIAZOLE-CARBENE HAVE BEEN STUDIED. THE CATALYTIC PROPERTIES OF THESE MO COMPLEXES IN OLEFIN EPOXIDATION AND BEHAVIOURS UNDER OXIDATIVE CONDITION HAVE BEEN INVESTIGATED. FOR PT-NHC CHEMISTRY, A SERIES OF NEW N-METHYLBENZIMIDAZOLYL IMIDAZOLIUM SALTS AND CORRESPONDING NOVEL IONIC PT(II) TRI, DI-NHC COMPLEXES HAVE BEEN STUDIED. THEIR DFT AND TD-DFT ANALYSES AND LUMINESCENT PROPERTY HAVE BEEN STUDIED. MOREOVER, SYNTHESIS OF CYCLOMETALLATED DINUCLEAR PT(II)(III) COMPLEXES HAVE BEEN EXPLORED, WHICH WAS INSPIRED BY SERENDIPITOUS FORMATION OF SIMILAR TYPE DINUCLE