Jy D. Chartres, A. Dahir, P. A. Tasker
Oct 1, 2007
Citations
0
Influential Citations
5
Citations
Journal
Inorganic Chemistry Communications
Abstract
Abstract Three amino(polyphenolic) ligands, N,N′-bis(5-tert-butyl-2-hydroxybenzyl)-1,2-diaminoethane 1, tris(5-tert-butyl-2-hydroxy-3-methylbenzyl)amine 3, its 3-chloro analogue 4 and their ZrIV complexes have been synthesised. The crystal structure of the ZrIV complex of tris(5-tert-butyl-3-chloro-2-hydroxybenzyl)amine, shows this to be [Zr(4-2H)2] in which both ligands exists in a zwitterionic form with one alkylammonium and three phenolate groups. The complexes are stable in a two phase, chloroform/water, system at high pH, but the zirconium is stripped at pH