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Herreros B, Carr SW, Klinowski J. 5-coordinate si compounds as intermediates in the synthesis of silicates in nonaqueous media. Science. 1994;263(5153):1585-7doi: 10.1126/science.263.5153.1585.
Herreros, B., Carr, S. W., & Klinowski, J. (1994). 5-coordinate si compounds as intermediates in the synthesis of silicates in nonaqueous media. Science (New York, N.Y.), 263(5153), 1585-7. https://doi.org/10.1126/science.263.5153.1585
Herreros, B, et al. "5-coordinate si compounds as intermediates in the synthesis of silicates in nonaqueous media." Science (New York, N.Y.) vol. 263,5153 (1994): 1585-7. doi: https://doi.org/10.1126/science.263.5153.1585
Herreros B, Carr SW, Klinowski J. 5-coordinate si compounds as intermediates in the synthesis of silicates in nonaqueous media. Science. 1994 Mar 18;263(5153):1585-7. doi: 10.1126/science.263.5153.1585. PMID: 17744785.
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Science. 1994 Mar 18;263(5153):1585-7. doi: 10.1126/science.263.5153.1585.

5-coordinate si compounds as intermediates in the synthesis of silicates in nonaqueous media.

Science (New York, N.Y.)

B Herreros, S W Carr, J Klinowski

PMID: 17744785 DOI: 10.1126/science.263.5153.1585

Abstract

Sodium silicoglycolate, an organosilicon compound in which silicon is in 5-coordination with respect to oxygen, is shown to be a reaction intermediate in the synthesis of a purely siliceous sodalite with ethylene glycol as solvent. The presence of silicon-29 nuclear magnetic resonances at -105.5 +/- 0.3 parts per million in solution and -102.7 parts per million in the solid state as well as x-ray powder diffraction patterns demonstrate that 5-coordinate silicon is intimately involved in the synthesis. Silicon compounds of the 5-coordinate type are highly reactive and are promising starting materials for the synthesis of novel silicone polymers, molecular sieves, glasses, semiconductors, and ceramics. We have used sodium silicoglycolate to prepare the molecular sieve silicalite as well as sodalites of different compositions.

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