Preparation and reactivity of some phenylbismuth(III) quinolin-8-olate derivatives

Article abstract of DOI:10.1071/ch9960231

The bimetallics [PhBi(Ox)₂(NaX)_n] (Ox^- = quinolin-8-olate: X = Cl, Br or I), containing variable amounts of sodium halides, have been prepared by reaction of PhBiX₂ with Na(Ox) (mole ratio 1:2) or of Ph₂BiX with Na(Ox) (mole ratio 1:1) in ethanol. A similar preparation has given [PhBi(MeOx)₂(NaI)_n] (MeOx^- = 2-methylquinolin-8-olate). The bimetallics have been characterized by X-ray powder photography, f.a.b. mass spectrometry and ¹H n.m.r. and electronic spectroscopy. Sodium halide-free PhBi(Ox)₂ was obtained from the reaction of Ph₂BiCl with Na(Ox) in the presence of 15-crown-5, or from treatment of PhBiI₂ or Ph₂BiI with NBu₄(Ox). Reaction of equimolar amounts of PhBiI₂ and Na(Ox) gives Bi(Ox)₂I. which can also be obtained from BiI₃ and Na(Ox) in a 1:1 or 1:2 stoichiometry. Treatment of PhBiI₂ with M(Ox) (M = Na or K) in a 1:3 mole ratio yields [MPhBi(Ox)₃] bimetallics, which appear to contain both chelating and unidentate Ox ligands from their electronic spectra.