Halo-complexes of titanium(III): The thermochromic behaviour of [NBu 4][TiCl 4(THF) 2

Abstract

TiCl 3(thf) 3 reacts with ACl (A = NBu 4, PPN; PPN = Ph 3P N PPh 3) in dichloromethane solution, affording the compounds A[TiCl 4(thf) 2] (A = NBu 4, 1; A = PPN, 2). Compound 1, dissolved in CH 2Cl 2, exhibits thermochromic behaviour which has been the subject of variable-temperature UV–Vis investigations.