Dual fluorescence of aryldisilanes and related compounds: evidence for the formation of 1(.sigma..pi.*) orthogonal intramolecular charge-transfer states
Dual fluorescence of aryldisilanes and related compounds: evidence for the formation of 1(.sigma..pi.*) orthogonal intramolecular charge-transfer states
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芳基乙硅烷和相关化合物的双荧光：形成 1(.sigma..pi.*) 正交分子内电荷转移态的证据
DOI：
10.1021/j100368a022
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
M. Kira
中科院分区：
文献类型：
--
作者：
H. Sakurai;H. Sugiyama;M. Kira
记录了14种芳基五甲基二硅烷及其相关化合物的荧光光谱和吸收光谱。一些化合物显示对应于两个单重激发态的双荧光。具有电荷转移性质的最低激发单重态的高极性由溶剂位移证明。结构效应清楚地表明Si-Si（和Si-Ge）键和芳基分别作为电子给体和受体起作用
Fluorescence and absorption spectra of 14 arylpentamethyldisilanes and related compounds are recorded. Several compounds reveal dual fluorescence corresponding to two singlet excited states. The high polarity of the lowest excited singlet states with charge-transfer nature is evidenced by the solvent shifts. Structural effects clearly demonstrate that Si-Si (and Si-Ge) bonds and aryl groups function as electron donors and acceptors, respectively