Zwitterionic and anionic multinuclear pentacoordinate silicon(IV) complexes with bridging (R,R)-tartrato(4-) ligands and SiO5 skeletons: synthesis and reactivity in aqueous solution

Bastian Theis; Jörg Weiss; W Peter Lippert; Rüdiger Bertermann; Christian Burschka; Reinhold Tacke

doi:10.1002/chem.201102815

Zwitterionic and anionic multinuclear pentacoordinate silicon(IV) complexes with bridging (R,R)-tartrato(4-) ligands and SiO5 skeletons: synthesis and reactivity in aqueous solution

Chemistry. 2012 Feb 20;18(8):2202-6. doi: 10.1002/chem.201102815. Epub 2012 Jan 23.

Authors

Bastian Theis¹, Jörg Weiss, W Peter Lippert, Rüdiger Bertermann, Christian Burschka, Reinhold Tacke

Affiliation

¹ Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany.

PMID: 22271431
DOI: 10.1002/chem.201102815

Abstract

Two nutrients in one molecule: A zwitterionic λ(5)Si,λ(5)Si'-disilicate (1) was synthesized and characterized. It contains ligands that exclusively derive from natural products ((R,R)-tartaric acid, choline). Hydrolysis of 1 yields 2, which shows a remarkable kinetic stability in water. Upon dissolution of 1 and 2 in water, the nutrients choline and orthosilicic acid are formed by hydrolysis.