DIOXYGEN LIGAND TRANSFER FROM PLATINUM TO MOLYBDENUM - ISOLATION OF AHIGHLY REACTIVE MOLYBDENUM(VI) OXOPEROXO DIMER

Citation
H. Arzoumanian et al., DIOXYGEN LIGAND TRANSFER FROM PLATINUM TO MOLYBDENUM - ISOLATION OF AHIGHLY REACTIVE MOLYBDENUM(VI) OXOPEROXO DIMER, Bulletin de la Societe chimique de France, 132(11), 1995, pp. 1119-1122
Citations number
23
Categorie Soggetti
Chemistry Inorganic & Nuclear",Biology,Chemistry
ISSN journal
00378968
Volume
132
Issue
11
Year of publication
1995
Pages
1119 - 1122
Database
ISI
SICI code
0037-8968(1995)132:11<1119:DLTFPT>2.0.ZU;2-G
Abstract
The reaction of Pt(O-2)(PPh(3))(2) with Mo(O)(2)(mesityl)(2) (mesityl = 2,4,6-Me(3)C(6)H(2)) in pyridine results in the transfer of the diox ygen ligand from platinum to molybdenum giving, in the presence of PPh (4)Cl, a molybdenum peroxo compound 1 in which all the organic moietie s have been lost. This compound epoxidizes tetracyanoethylene at a rat e estimated at 10(4) greater than the known oxodiperoxomolybdenum comp lex 2. Furthermore, 1 exhibits a high selectivity for electron-poor ol efins (TCNE/cyclooctene = 10(3)). Elemental analysis, IR and O-17 NMR indicate that 1 is the tetraphenylphosphonium salt of an oxoperoxomoly bdenum(VI) dimer.