Complexes of molybdenum with sterically hindered thiolato-ligands

P. T. Bishop, P. J. Blower, J. R. Dilworth, Jon A Zubieta

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Abstract

[MoBr2(CO)4] reacts with 2,4,6-Pri 3C6H2S- (TIPT-) to give trigonal bipyramidal [Mo(CO)2(TIPT)3]- (I). The tungsten and rhenium analogues are isostructural. Complex I reacts with neutral donors to give [Mo(TIPT)3(CO)L]- (L = MeCN, ButCN, MeNC, ButNC or PMe2Ph) and with [PhN2][BF4] to give [Mo(N2Ph)(TIPT)3(MeCN)] (II). Complex II is also trigonal bipyramidal with axial N2Ph and MeCN ligands. [MoCl3(MeCN)3] reacts with TIPT in MeCN to give "[Mo(MeCN)(TIPT)4]". By contrast, MoCl4 in dimethoxyethane with TIPT gives [Mo2(TIPT)6] together with [MoO(TIPT)4]-. An X-ray crystal structure of [Mo2(TIPT)6] revealed an Mo-Mo triple bond analogous to [Mo2(OR)6] species. The phenylated thiol, 2,6-Ph2C6H3S-), reacts with [MoBr2(CO)4] in dimethoxyethane to give [Mo(CO)(DPT)2]. One of the o-phenyl groups is η6-bonded to give a distorted piano-stool structure. The η6-phenyl group is readily displaced by a range of neutral donor ligands to give access to a new series of Mo(II) thiolato-derivatives.

Original languageEnglish (US)
Pages (from-to)363-367
Number of pages5
JournalPolyhedron
Volume5
Issue number1-2
DOIs
StatePublished - 1986
Externally publishedYes

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ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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