A dinuclear oxomolybdenum(VI) complex, [Mo2O6(4,4 '-di-tert-butyl-2,2 '-bipyridine)(2)], displaying the {MoO2(mu-O)(2)MoO2}(0) core, and its use as a catalyst in olefin epoxidation
authors Amarante, TR; Neves, P; Paz, FAA; Pillinger, M; Valente, AA; Goncalves, IS
nationality International
journal INORGANIC CHEMISTRY COMMUNICATIONS
author keywords Molybdenum; Dinuclear complexes; 4,4 '-di-tert-butyl-2,2 '-bipyridine; Olefin epoxidation; Crystal structure
keywords CAMBRIDGE STRUCTURAL DATABASE; TERT-BUTYL HYDROPEROXIDE; BOND-VALENCE PARAMETERS; DIOXOMOLYBDENUM(VI) COMPLEXES; CRYSTAL-STRUCTURE; LEWIS-BASE; MOLYBDENUM; LIGANDS; LIQUID; OXO
abstract The dinuclear complex [Mo2O6(di-tBu-bipy)(2)] (1) (di-tBu-bipy = 4,4'-di-tert-butyl-2,2'-bipyridine) was obtained as a minor product of the hydrothermal reaction of MoO3 and di-tBu-bipy, and structurally characterized by single-crystal X-ray diffraction. In the molecular structure of 1 two distorted MoO6 octahedra share a common edge to form a dioxo-bridged Mo2O6 unit which is coordinated by di-tBu-bipy ligands. The catalytic performance of 1 for the epoxidation of non-functionalized olefins using tert-butylhydroperoxide as oxidant compares favorably with that reported for other oxomolybdenum(VI) complexes bearing the same organic ligand. The catalyst exhibits regioselectivity toward internal olefin epoxidation over external olefin epoxidation. (C) 2012 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 1387-7003
year published 2012
volume 20
beginning page 147
ending page 152
digital object identifier (doi) 10.1016/j.inoche.2012.02.038
web of science category Chemistry, Inorganic & Nuclear
subject category Chemistry
unique article identifier WOS:000305665800035
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journal impact factor 1.810
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