Preparation, Structure, and Photochemistry of 2-Disilanyl-1, 4-benzoquinones.

…, K Sakamoto, K Ebata, C Kabuto, H Sakurai

Index: Tsutsui, Shinobu; Sakamoto, Kenkichi; Ebata, Keisuke; Kabuto, Chizuko; Sakurai, Hideki Bulletin of the Chemical Society of Japan, 2002 , vol. 75, # 12 p. 2661 - 2665

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Citation Number: 6

Abstract

We synthesized 5-chloro-and 5-bromo-substituted 2-(pentamethyldisilanyl)-1, 4- benzoquinones 1a and 1b, respectively. Their electronic absorption spectra showed significant intramolecular charge-transfer interaction between disilane and 1, 4- benzoquinone moieties. The intramolecular σ (SiSi)–π* transition energies of 1a and 1b were lower than that of 2-(pentamethyldisilanyl)-5-t-butyl-1, 4-benzoquinone (1c). X-ray ...