X-RAY-ABSORPTION SPECTROSCOPY INVESTIGATION ON THE STRUCTURE OF METHYL ACRYLATE TICL4 COMPLEXES IN SOLUTION

EXAFS and XANES spectra of methyl acrylate-TiCl4 complexes in nitroben zene show that the titanium atom is coordinated to two oxygen atoms an d four chlorine atoms for any methyl acrylate/TiCl4 ratio; furthermore , there is no free TiCl4, so some carbonyls must be coordinated to two titanium atoms, as confirmed by IR spectroscopy; coordination increas es the titanium-chlorine distance with regard to TiCl4.