Not Unhydrolyzed at pH 8

Contrary to a recent claim that the zwitterionic bis(diolato)silicate 1 exhibits remarkable hydrolytic stability at pH 7–8, a closer look at 29Si and 13C NMR spectroscopic data of 1 under various conditions (solvent, pH, concentration) reveals that hydrolysis products are the predominant species in...

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Veröffentlicht in:	Angewandte Chemie International Edition 2006-05, Vol.45 (20), p.3212-3214
Hauptverfasser:	Kästele, Xaver, Klüfers, Peter, Tacke, Reinhold
Format:	Artikel
Sprache:	eng
Schlagworte:	Erythritol - analogs & derivatives higher-coordinate compounds Hydrogen-Ion Concentration Hydrolysis Magnetic Resonance Spectroscopy Organosilicon Compounds - chemistry silicates Silicates - chemistry silicon Vasodilator Agents - chemistry zwitterions
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Contrary to a recent claim that the zwitterionic bis(diolato)silicate 1 exhibits remarkable hydrolytic stability at pH 7–8, a closer look at 29Si and 13C NMR spectroscopic data of 1 under various conditions (solvent, pH, concentration) reveals that hydrolysis products are the predominant species in solution.
ISSN:	1433-7851 1521-3773
DOI:	10.1002/anie.200503534