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Citation: Chen Yi, Wu Shi-Kang. Absorption and Fluorescence of some Pyrylium Salts with Hindered Structure[J]. Acta Physico-Chimica Sinica, ;1995, 11(10): 916-920. doi: 10.3866/PKU.WHXB19951012 shu

Absorption and Fluorescence of some Pyrylium Salts with Hindered Structure

Chen Yi ,
Wu Shi-Kang

1.
Institute of Photographic Chemistry,Academia Sinica,Beijing 100101

Received Date: 10 October 1994
Available Online: 15 October 1995

A series of pyrylium compounds with different structures have been synthesized. The photophysical behavior of these compounds has also been measured. Results show that the structures of compounds and the polarities of solvents make great effects on the photophysical behaviors of compounds, especially when the structures of compounds are hindered. It indicats that the intramolecular rotation relaxation of compounds in excited state in closely related to the fluorescence quantum yields of compounds.
- Pyrylium salt,
- Absorption,
- Fluorescence,
- Intramolecular charge transfer
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