Titanium amide molecular precursors for titanium nitride

Abstract

The reaction of titanium tetrachloride in toluene at −78°C with 2 equivalents of N,N′,N″-trimethylethylenediamine yields a monomeric titanium tetrachloride adduct, [TiCl 4(Me 2NCH 2CH 2MNeH)] ( 1). The complex [TiCl 2(Me 2NCH 2CH 2NMeH) 2] ( 2) is prepared by the reaction of titanium tetrachloride with 4 equivalents of N,N′,N″-trimethylethylenediamine at −78°C. The X-ray crystal structure of 1 reveals that it has a distorted octahedral structure, with the chelating amine ligand in a delta- gauche conformation.