title: Synphos modified Pt nanoclusters, their heterogenization by silica sol-gel entrapment, and catalytic activity in hydrogenolysis of bicyclo[2.2.2]oct-7-enes and hydrogenation of ethyl pyruvate.
abstract: Platinum (Pt) colloids modified by the chiral ligand synphos were prepared with the goal of obtaining a catalytic nanomaterial and were subsequently embedded in silica to form a heterogeneous catalyst. The systems were characterized by (31)P-NMR, x-ray diffraction, molecular modeling and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTs) measurements. These colloids, both as 'quasi-homogeneous catalysts' (or soluble heterogeneous catalysts) and embedded in silica (heterogeneous catalysts) were employed in the selective hydrogenolysis of highly sterically constrained bicyclo[2.2.2]oct-7-enes and hydrogenation of ethyl pyruvate.
authors.affiliation: Faculty of Chemistry, Department of Chemical Technology and Catalysis, University of Bucharest, B-dul Regina Elisabeta 4-12, Bucharest 030018, Romania.
authors.forename: F
authors.initials: F
authors.lastname: Neaţu
authors.forename: A
authors.initials: A
authors.lastname: Kraynov
authors.forename: V I
authors.initials: VI
authors.lastname: Pârvulescu
authors.forename: K
authors.initials: K
authors.lastname: Kranjc
authors.forename: M
authors.initials: M
authors.lastname: Kočevar
authors.forename: V
authors.initials: V
authors.lastname: Ratovelomanana-Vidal
authors.forename: R
authors.initials: R
authors.lastname: Richards