Tripodal Tetrahedral Titanium Coordination in the Silica-Grafted Titania Epoxidation Catalysts: Is Not It Only a Myth? Selective Formation of [Cy7Si7O12Ti](2)(mu-OR)(2)(mu-ROH) Cores on Thermal

Seisenbaeva, Gulaim; Kessler, Vadim; Viotti, Olle

doi:10.1021/ic901503y

Research article - Peer-reviewed, 2009

Tripodal Tetrahedral Titanium Coordination in the Silica-Grafted Titania Epoxidation Catalysts: Is Not It Only a Myth? Selective Formation of [Cy7Si7O12Ti](2)(mu-OR)(2)(mu-ROH) Cores on Thermal "Dissociation" of Alkoxytitanasilsesquioxanes

Seisenbaeva, Gulaim; Kessler, Vadim; Viotti, Olle

Abstract

The molecular structures of the species crystallizing from solutions of alkoxytitanasilsesquioxanes in hydrocarbons upon reflux confirm the partial release of solvating alcohol. They feature, however, distinctly the formation of a dinuclear core with preserved hexacoordination for the metal atoms. The active titanium centers in the silica-titania epoxidation catalysts, lacking the sterically demanding ligands, are thus quite probably also hexacoordinated.

Published in

Inorganic Chemistry
2009, volume: 48, number: 19, pages: 9063-9065
Publisher: AMER CHEMICAL SOC

Authors' information

Seisenbaeva, Gulaim

Swedish University of Agricultural Sciences, Department of Chemistry

Kessler, Vadim

Swedish University of Agricultural Sciences, Department of Chemistry

Viotti, Olle

UKÄ Subject classification

Environmental Sciences related to Agriculture and Land-use
Fish and Aquacultural Science

Publication Identifiers

DOI: https://doi.org/10.1021/ic901503y

URI (permanent link to this page)

https://res.slu.se/id/publ/49342