Abstract：This article synthesized two carbazole pyridine N-oxide internal salts, 4- (9H carbazole 9-yl) pyridine 1-oxide (CPNO) and 4-(4-(9H carbazole 9-yl) phenyl) pyridine 1-oxide (CPPNO). It measured their UV visible absorption and fluorescence spectra in different solvents, showing good sensitivity to solvent polarity. The calculation shows that both compounds have a sizeable excited state dipole moment, which is the reason for the solvent polarity sensitivity of the compound. The research results provide a new approach for developing novel fluorescent polarity probes.
梁文娟，王慧敏，白云峰，冯 锋. 两种咔唑基-吡啶-N-氧化物内盐荧光极性探针研究[J]. 光谱学与光谱分析, 2024, 44(06): 1600-1606.
LIANG Wen-juan, WANG Hui-min, BAI Yun-feng, FENG Feng. Study on Fluorescence Polarity Probes of Two Carbazole Pyridine-N-Oxide Internal Salts. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(06): 1600-1606.
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