Insights into the Hydrolytic Polymerization of Trimethoxymethylsilane. Crystal Structure of (MeO)2MeSiONa

Casseday P. Richers; Jeffery Bertke; Thomas B. Rauchfuss

doi:10.1021/acs.inorgchem.6b00874

Insights into the Hydrolytic Polymerization of Trimethoxymethylsilane. Crystal Structure of (MeO)₂MeSiONa

Casseday P. Richers, Jeffery Bertke, Thomas B. Rauchfuss

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The commercially practiced conversion of trimethoxymethylsilane (MTM) to [OSi(OMe)Me)]_n polymers and resins is assumed to proceed via the silanol (MeO)₂MeSiOH. Access to this crucial silanol is gained via the synthesis of (MeO)₂MeSiONa, the first methoxysilanoate to be crystallographically characterized. Mild protonation of this silanoate gives (MeO)₂MeSiOH, which is shown to condense with (MeO)₂MeSiOH but not with MTM. Condensation generates reactive disiloxanols but does not produce symmetric disiloxanes. Parallel results were obtained with (MeO)₂PhSiOH.

Original language	English (US)
Pages (from-to)	5744-5746
Number of pages	3
Journal	Inorganic Chemistry
Volume	55
Issue number	12
DOIs	https://doi.org/10.1021/acs.inorgchem.6b00874
State	Published - Jun 20 2016

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/acs.inorgchem.6b00874

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title = "Insights into the Hydrolytic Polymerization of Trimethoxymethylsilane. Crystal Structure of (MeO)2MeSiONa",

abstract = "The commercially practiced conversion of trimethoxymethylsilane (MTM) to [OSi(OMe)Me)]n polymers and resins is assumed to proceed via the silanol (MeO)2MeSiOH. Access to this crucial silanol is gained via the synthesis of (MeO)2MeSiONa, the first methoxysilanoate to be crystallographically characterized. Mild protonation of this silanoate gives (MeO)2MeSiOH, which is shown to condense with (MeO)2MeSiOH but not with MTM. Condensation generates reactive disiloxanols but does not produce symmetric disiloxanes. Parallel results were obtained with (MeO)2PhSiOH.",

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AU - Bertke, Jeffery

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AB - The commercially practiced conversion of trimethoxymethylsilane (MTM) to [OSi(OMe)Me)]n polymers and resins is assumed to proceed via the silanol (MeO)2MeSiOH. Access to this crucial silanol is gained via the synthesis of (MeO)2MeSiONa, the first methoxysilanoate to be crystallographically characterized. Mild protonation of this silanoate gives (MeO)2MeSiOH, which is shown to condense with (MeO)2MeSiOH but not with MTM. Condensation generates reactive disiloxanols but does not produce symmetric disiloxanes. Parallel results were obtained with (MeO)2PhSiOH.

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