Pentafluorophenylantimony compounds

Abstract

The chemical behaviour of (C6F5)3Sb (I), has been studied. Attempts to isolate transition-metal complexes of I were unsuccessful. Hydrolysis of I gives the binuclear [(C6F5)2Sb]2O (II) and treatment of I with chlorine, thallic chloride or copper(II) chloride gives (C6F5)3SbCl2 (III). Reactions of III with AgNO3, AgClO4 and NaOCH3 give disubstituted compounds of the type (C6F5)3SbX2 (IV, X = NO3; V, X = ClO4; VI, X = OCH3. Reactions of III with sodium acetylacetonate and sodium oxinate gives the monosubstituted octahedral complexes (C6F5)3SbCl-Acac (VII) and (C6F5)3SbClOx (VIII). Compounds VI–VIII are insoluble in water whereas compounds III–IV are hydrolysed to the binuclear derivatives [(C6F5)3SbX]2O (IX, X = Cl; X, X = NO3), and V similarly gives {[C6F5)3Sb]2O]} - (ClO4)2.