Pyrolysis gas chromatography/mass spectrometry of polyvinylsilanes. Mass spectrometric characteristics of alkanes and alkenes containing two or more triorganosilyl substituents

Autor:	V. G. Filippova, Vladimir G. Zaikin, O. B. Semenov
Rok vydání:	1991
Předmět:	chemistry.chemical_classification Silylation Double bond Alkene Mass spectrometry Biochemistry Pyrolysis–gas chromatography–mass spectrometry Hydrocarbon chemistry Molecular Medicine Physical chemistry Organic chemistry Gas chromatography Alkadienes Instrumentation Spectroscopy
Zdroj:	Organic Mass Spectrometry. 26:751-756
ISSN:	1096-9888 0030-493X
DOI:	10.1002/oms.1210260908
Popis:	Pyrolysis gas chromatography/mass Spectrometry was applied to the investigation of homopolymers obtained from trimethyl-, n-pentyldimethyl-, n-octyldimethyl- and trideuteromethyldimethyl-vinylsilanes. The electron impact-induced fragmentation of alkanes, alkenes and alkadienes containing two or more corresponding silyl substituents and resulting from pyrolysis of polymers was elucidated. The most characteristic fragmentation patterns of trimethylsilyl-substituted compounds are due to the loss of HSi(CH3)3 and Si(CH3)4 from M+˙, the order of which depends on the presence or absence of a double bond in hydrocarbon chain. The same structural parameter determines the probability of the characteristic decomposition of n-alkyldimethylsilyl-substituted compounds through the loss of alkene and alkyl groups from the molecular ions.
Databáze:	OpenAIRE
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