The photolysis of octaisopropylcyclotetrasilane; evidence for the formation of hexaisopropylcyclotrisilane and tetraisopropyldisilene

H Watanabe, Y Kougo, Y Nagai

Index: Watanabe, Hamao; Kougo, Yuichi; Nagai, Yoichiro Journal of the Chemical Society, Chemical Communications, 1984 , # 1 p. 66 - 67

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Abstract

We recently described the first synthesis of a peralkylcyclotri- silane, hexaneopentylcyclotrisilane [(BuCH2)2Si]3, which gave on photolysis the first peralkyldisilene, tetraneopentyldi- silene (BU'CH~)~S~=S~( CH2But)2. 1 The spectrophotometric properties of these compounds are of interest: both the Si3 and Si=Si frameworks behave as chromophores per se, showing their longest wavelength absorption maxima at 3 10 and 400 nm, respectively. In close connection with ...