Study on bridged substituted styryl pyrazine derivatives probe fluorophore

Abstract

Two bridged substituted styryl pyrazine derivatives have been synthesized in this work. The effects of environmental temperature, solvent polarity and viscosity on the photophysics and luminescence behavior of these compounds were studied in detail. Results indicated that a equilibrium between coplanar and twisted conformations existed, and environmental temperature, solvent polarity and viscosity could affect the conformation of these compounds. The twisted conformation was favorable for luminescence, and the excited coplanar molecule could relax to the twisted conformation. Independence between fluorescence quantum yields and solvent polarity at room temperature make it possibly to develop a novel probe for detecting the microviscosity specially.

Key words: MOLECULAR STRUCTURE, STYRENE P, PYRAZINE P, FLUORESCENCE PROBE

CLC Number:

O644

Cite this article

LI ZEMIN;WU SHIKANG. Study on bridged substituted styryl pyrazine derivatives probe fluorophore[J]. Acta Chimica Sinica, 1997, 55(1): 90-96.

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