A STUDY ON THE FLUORESCENCE EMITTING MECHANISM OF 2-PYRAZOLINE

doi:10.7517/j.issn.1674-0475.1995.01.16

Abstract

Abstract: In this work,a new type of 2-pyrazoline compound,1,3-diphenyl-4-(p-nitroben-zylidene)-2-pyrazoline(TPP),was synthesized; and the steady-state photophysical behavior at room temperature and lower temperature(77K) of the compound were studied. Results indicate that there are two charge transfer mechanisms in TPP,one is from N1→N2→C3→phenyl group,the other is from N1→N2→C3→C4→p-nitrobenzylidene. When the compound TPP is excited,two charge transfer mechanisms compete with each other,and have different fluorescence emitting conformations.

Key words: pyrazoline, absorption spectrum, fluorescence spectrum, fluorescence atlow temperature, emission conformation

YAN ZHENG-LIN, WU SHI-KANG. A STUDY ON THE FLUORESCENCE EMITTING MECHANISM OF 2-PYRAZOLINE[J]. Imaging Science and Photochemistry, 1995, 13(1): 16-21.

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A STUDY ON THE FLUORESCENCE EMITTING MECHANISM OF 2-PYRAZOLINE

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