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• W2003934429 abstract "Pyrrolyl-substituted polysilanes were synthesized in the present study. The pyrrolyl rings directly attached to the Si conjugated main chains with SiN bonds. Poly(alkylpyrrolylsilane) and poly(phenylpyrrolylsilane) showed a chromophore which is attributed to σ–σ* transition in the conjugated system associated with near-UV fluorescence. However, a strong photoluminescence band was observed at 450–500 mn other than the near-UV photoluminescence for the polysilanes. The luminescence is due to the energy relaxation from σ* to an inter-band level produced by σ–π mixing between main chain σ-conjugated system and pyrrolyl groups as suggested by theoretical calculations. Transient spectroscopy of the polysilanes was also carried out showing a new chromophore at the vis-IR region (800 nm) other than near-UV (300–400 nm) and IR (∼2000 nm) absorption bands typically observed for alkyl- and phenyl-substituted polysilanes. It also supports the presence of the mid-gap level in the pyrrolyl-substituted polysilanes." @default.
• W2003934429 created "2016-06-24" @default.
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• W2003934429 date "2000-10-01" @default.
• W2003934429 modified "2023-10-17" @default.
• W2003934429 title "Optical properties of pyrrolyl-substituted polysilanes" @default.
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• W2003934429 doi "https://doi.org/10.1016/s0022-328x(00)00398-3" @default.
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