Photochemical Reaction Mechanism of 2-Aryltrisilanes

Abstract

Abstract: The photophysical and photochemical properties of 2-aryltrisilanes (1) was investigated via theory and experiment. The intense fluorescene band of compound 1 was assigned to the intramolecular charge-transfer (ICT) in a polar solvent. Whereas silylene extrusion and 1,3-silyl migration were the major pho-toreactions of compound 1 resulted from the solvolytic cleavage of the Si-Si bond. The temperature dependence of the products distribution suggested that both the silylene extrusion and 1,3-silyl migration came from the different excited states. The results of the photochemical reaction of compund 1 using a nonresonant two-photo(NRTP) excitation show that the silylene extrusion occurs via the ¹L_astate.

Key words: 2-Aryltrisilanes, Intramolecular charge-transfer (ICT), Nonresonant two-photon photoreac- tion(NRTP)

CLC Number:

O644

TrendMD:

LIU Cheng-You, YAN Xi-Jie, GAO Yu-Xiang, TIAN Gui-Cai . Photochemical Reaction Mechanism of 2-Aryltrisilanes[J]. Chem. J. Chinese Universities, 2003, 24(5): 895.

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Photochemical Reaction Mechanism of 2-Aryltrisilanes

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