Isolation and structural characterization of triethanolaminotitanatranes: X-ray structures of partial hydrolysis condensates

T Kemmitt; N I al-Salim; G J Gainsford

doi:10.1021/ic000510u

Isolation and structural characterization of triethanolaminotitanatranes: X-ray structures of partial hydrolysis condensates

Inorg Chem. 2000 Dec 25;39(26):6067-71. doi: 10.1021/ic000510u.

Authors

T Kemmitt¹, N I al-Salim, G J Gainsford

Affiliation

¹ Industrial Research Ltd., P.O. Box 31-310, Lower Hutt, New Zealand.

PMID: 11188525
DOI: 10.1021/ic000510u

Abstract

A family of triethanolamine complexes of titanium with varying metal/ligand ratios have been prepared from reactions of titanium tetraisopropoxide with triethanolamine. Three nonhydrolytic products, having essentially all isopropoxide ligands substituted by triethanolamine, were prepared as hygroscopic, glassy solids. Crystals of two hexameric titanatrane partial hydrolysis analogues [Ti3(mu 2-O)((HOCH2CH2)2NCH2CH2O)(OCH2CH2)2(mu 2-OCH2CH2)N)2(OCH2CH2)(mu 2- OCH2CH2)2N)]2 (1), and [Ti3(mu 2-O)(OCH(CH3)2)((OCH2CH2)2(mu 2-OCH2CH2)N)2(OCH2CH2)(mu 2- OCH2CH2)2N)]2 (2) were isolated and structurally characterized. The structures consist of a central core of two oxo-bridged dititanatranes (TEA)TiOTi(TEA) (TEAH3 = triethanolamine) with the nonhydrolytic residue (TEA)Ti(TEAH2) included as an adduct in (1), analogously to (TEA)Ti(OPri) in (2).