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Halide abstraction reactions of Sb(V) chloride: Synthesis and characterisation of hexachloroantimonate salts of M(II) M = Zn, Mg; M(III) M = Cr; and M(IV) M = Ti, Sn and related Cp2M(IV) M = Ti, Zr and Hf

1988; Elsevier BV; Volume: 149; Issue: 1 Linguagem: Inglês

10.1016/s0020-1693(00)90568-1

1873-3255

Paul N. Billinger, Preet P. K. Claire, Helen Collins, Gerald R. Willey,

Lanthanide and Transition Metal Complexes

Reactions of SbCl5 with various covalent metal halides in MeCN have been studied as a convenient and direct route to metal hexachloroantimonate salts via Sb(V) halide abstraction. The isolation and characterization (Ir, Vis-UV, 1H NMR spectroscopic and microanalytical) of the complexes [Zn(MeCN)6][SbCl6]2, [CrCl2(MeCN)4][SbCl6], [SnCl3(MeCN)3][SbCl6], [TiCl2(MeCN)4][SbCl6]2, [Cp2M(Cl)(MeCN)x][SbCl6] M = ti, x = 1; M = Zr, Hf, x = 2, and [Cp2M(MeCN)y][SbCl6]2 M = Ti, y = 2; M = Zr, Hf, y = 3, is described. The reaction of MgCl2 with SbCl5 was carried out in EtOAC as solvent and gave [Mg(EtOAc)6][SbCl6]2. 121Sb NMR, IR and UV spectroscopic measurements provide positive identification of the SbCl6− anion.