Elsevier

Polyhedron

Volume 15, Issues 5–6, March 1996, Pages 873-879
Polyhedron

Polyhedron report number 58
Reactions of bis(mesitylimido)bis(arylthiolato)chromium(VI) compounds

https://doi.org/10.1016/0277-5387(95)00324-XGet rights and content

Abstract

The chromium(VI) imidothiolato complex, Cr(Nmes)2(Smes)2 (1), mes = 2,4,6-Me3C6H2, reacts with 2,6-xylylisocyanide (xylNC) to form the five-coordinate chromium(IV) complex Cr(Nmes)(Smes)2(xylNC)2(2). A similar interaction of Cr(Nmes)2 (SC6H2-2,4,6-Pi3)2 gives only the disulfide adduct Cr(Nmes)2(SC6H2-2,4,6-Pri3)2 · (2,4,6-Pri3C6H2S)2(3). Interaction of 1 and PMePh2 gives Cr4(Nmes)2(μ-Nmes)4(Smes)2(O)2(μ-O)2(4), where the oxygen atoms arise from adventious oxygen during work up. The X-ray crystal structures of 2–4 have been determined. In 2 the CrIV centre has trigonal bipyramidal geometry with axial isocyanides. The CrVI centre in 3 is tetrahedral and 4 is a centro-symmetric tetramer in which the outer CrV centres are tetrahedral and the inner CrIV centres are square-pyramidal.

References (9)

  • A.A Danopoulos et al.

    J. Chem. Soc., Dalton Trans.

    (1995)
  • K Nakamoto

    Infrared and Raman Spectra of Inorganic and Coordination Compounds

    (1986)
  • D.S Glueck et al.

    J. Am. Chem. Soc.

    (1991)
  • P.J Walsh et al.

    Organometallics

    (1993)
There are more references available in the full text version of this article.

Cited by (19)

  • Coordination chemistry of chromium in oxidation states +4, +5 and +6

    2021, Comprehensive Coordination Chemistry III
  • Reactivity of a low-valent chromium dinitrogen complex

    2011, Inorganica Chimica Acta
    Citation Excerpt :

    A structure determination by X-ray diffraction (see Fig. 1 and Table 1) showed 2 to be reminiscent of a dinuclear nickel complex reported by Warren et al. [18]. A number of bridging imido complexes containing chromium have been reported, and while most possess two bridging imido groups and contain chromium in intermediate or high oxidation states (⩾+III), the structural parameters of 2 are not out of the ordinary [19–23]. Two crystallographically independent molecules of 2 occupy the asymmetric unit, but they are chemically indistinguishable and will be discussed together.

  • Chromium

    2004, Comprehensive Coordination Chemistry II
View all citing articles on Scopus
View full text