
TY  - JOUR
A1  - Ohair, RA 
A1  - Bowie, JH 
A1  - Currie, GJ 
T1  - Collision-Induced Dissociations of Negative-Ions Formed by Reaction of HO<sup>-</sup> With Alkyl and Aryl Silanes. The Formation of Multiple Bonds to Silicon
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1988
VL  - 41
IS  - 1
SP  - 57
EP  - 67
KW  - 
UR  - https://doi.org/10.1071/CH9880057 
N2  - Collisional activation of alkyl and aryl siloxide ions produces a variety of ions and neutrals containing double bonds to silicon. Sila  enolate ions and sila  acyl ions RSi =O are common features of the spectra of alkylsiloxide ions; ab initio calculations suggest these ions to have considerable multiple bond character. It is proposed that most reactions proceed through ion complex intermediates. Specific proton transfer reactions often occur for ions Me3SiCHR (R = C3H5, C3H3 or Ph), i.e. Me3SiCHR &#8594; -CH2(Me)2SiCH2R. In the particular case of the formation of PhCH2- from Me3SiCHPh, i.e. Me3SiCHPh &#8594; -CH2(Me)2SiCH2Ph &#8594; PhCH2- +Me2Si=CH2, the proton transfer competes with scrambling of all hydrogens in the decomposing ion. 
ER  -

