Synthesis and Characterization of Titanium(IV) Complexes with Silylated Schiff Bases

Abstract

The complexes formed by reacting titanłum tetrachloride with the silylated derivatives of the Schiff bases: N-(2-hydroxyphenyl)salycilideneimine (H₂L¹), N-(2-dimethylaminoethyl)salycilideneimine (HL²). and N-(2-hydroxvethyl)-salycilideneimine (H₂L³) have been synthesized and characterized by elemental analyses (C, H, N) and by i.r. and ′H n.m.r. spectroscopies.

The complexes have TiCl₂L¹, TiL¹2 TiCl₃L² and TiCl₂(HL³)₂ stoicheiomctries. The spectroscopic data indicate that the ligands coordinate to the metal through the imine nitrogen and the phenolic oxygens, and that in L² the tertiary amino group is also coordinated to the metal. In HL³ the oxygen of the aicohoi group is not coordinated.