Mercury-sensitized photolysis ofMe2SiH2 The disproportionation reactions of theMe2SiH radical

C Kerst, P Potzinger

Index: Kerst; Potzinger Journal of the Chemical Society - Faraday Transactions, 1997 , vol. 93, # 6 p. 1071 - 1078

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Citation Number: 7

Abstract

Mercury-sensitized photolysis of Me 2 SiH 2 yields in the primary step an Me 2 HSi radical and an H atom with a quantum yield of one. The Me 2 HSi radicals undergo a combination reaction [k (2)] as well as two kinds of disproportionation reactions leading to dimethylsilylene [k (3)] and 1-methylsilaethene [k (4)]. The following branching ratios have been determined: k (3)/[k (2)+ k (3)+ k (4)]= 0.64±0.10 and k (4)/[k (2)+ k (3)+ k (4)] 0.007. ...

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