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Zwitterionic and Anionic Multinuclear Pentacoordinate Silicon(IV) Complexes with Bridging (R,R)-Tartrato(4−) Ligands and SiO5 Skeletons: Synthesis and Reactivity in Aqueous Solution

✍ Scribed by Dr. Bastian Theis; Jörg Weiß; Dr. W. Peter Lippert; Dr. Rüdiger Bertermann; Dr. Christian Burschka; Prof. Dr. Reinhold Tacke


Publisher
John Wiley and Sons
Year
2012
Tongue
English
Weight
698 KB
Volume
18
Category
Article
ISSN
0947-6539

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✦ Synopsis


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.