Ligation studies of titanium–phenoxide and –dimethylamide derivatives with covalent metal halides: a route to binuclear transition-metal complexes
- 1 January 1982
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 2,p. 271-274
- https://doi.org/10.1039/dt9820000271
Abstract
Convenient and high-yield syntheses for [Ti(cp)(OPh)3] and [Ti(cp)Cl(OPh)2](cp =η-C5H5) are described. The donor characteristics of the mixed phenoxides [Ti(cp)n(OPh)4 –n], n= 0, 1, or 2, [{TiCl2(OPh)2}2], [Ti(cp)Cl(OPh)2], and of Ti(NMe2)4 have been investigated. Reactions with MCl3(M = Ti, V, or Cr), VOCl3, MX4(M = Ti, Zr, Hf, or Sn; X = Cl or Br), and MCl5(M = Nb, Ta, or Mo) generally feature exchange of OPh and NMe2 groups with halide rather than complexation. In several instances, using appropriate reaction conditions, the solid adducts MX4·Ti(NMe2)4(M = Sn, X = Cl or Br; M = Zr or Hf, X = Cl), SnCl4·[Ti(cp)2(OPh)2], and ZrCl4·Ti(OPh)4 have been isolated and fully characterised by analytical and spectral data.Keywords
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