Bipyridyl complexes of tervalent titanium
Abstract
A number of 2,2′-bipyridyl complexes of titanium(III) bromide have been prepared and characterised, but 1,10-phenanthroline yielded only non-stoicheiometric products. From conductance and spectral data the complexes TiBr3,bipy, 2TiBr3,3bipy, and TiBr3,2bipy have been assigned the respective structures (TiBr3,bipy)2, [TiBr2(bipy)2]+[TiBr4(bipy)]–, and [TiBr2(bipy)2]+Br–. The latter complex forms strongly bonded solvates with one molecule of methyl cyanide or chloroform.
Further investigation of 2TiCl3,3bipy suggests that it may have an ionic structure analogous to that of the bromo-complex.