| Fluorescence quenching of para-substitutedstyrenes by tetramethylethylene. Correlationanalysis of the quenching coefficient KSV and thequenching rate constant k_q by the dual-parameter equation with polar and spin-delocalization substituent constants |
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| 引用本文： | ZHANG,Yu-Huang JIANG,Bin JIANG,Xi-KuiShanghai Institute of Organic Chemistry,Chinese Academy of Sciences,Shanghai 200032,China. Fluorescence quenching of para-substitutedstyrenes by tetramethylethylene. Correlationanalysis of the quenching coefficient KSV and thequenching rate constant k_q by the dual-parameter equation with polar and spin-delocalization substituent constants[J]. 中国化学, 1997, 15(5): 395-404. DOI: 10.1002/cjoc.19970150503 |
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| 作者姓名： | ZHANG Yu-Huang JIANG Bin JIANG Xi-KuiShanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China |
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| 作者单位： | ZHANG，Yu-Huang JIANG，Bin JIANG，Xi-KuiShanghai Institute of Organic Chemistry，Chinese Academy of Sciences，Shanghai 200032，China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China |
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| 摘 要： | The fluorescence quenching coefficient (Ksv) and the quenching rate constant kq of ten para-substituted styrenes (1-Ys) have been measured and correlation-analyzed by both the dual-parameter equation (Eq. 1) with (ρxσx+ρ'σ') and the single-parameter equation (Eq. 2) with ρxσx. Ex-cellent results have been obtained for the correlation of KSV against (ρxσmb+ρ'σ'JJ) or (ρxσ+ +ρ'σ'JJ). Our results suggest that, possibly, there might be no need to use excited-state substituent constant for the fluorecence quenching process of excited states of styrenes.
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Fluorescence quenching of para-substitutedstyrenes by tetramethylethylene. Correlationanalysis of the quenching coefficient KSV and thequenching rate constant k_q by the dual-parameter equation with polar and spin-delocalization substituent consta |
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| ZHANG,Yu-Huang JIANG,Bin JIANG,Xi-Kui. Fluorescence quenching of para-substitutedstyrenes by tetramethylethylene. Correlationanalysis of the quenching coefficient KSV and thequenching rate constant k_q by the dual-parameter equation with polar and spin-delocalization substituent consta[J]. Chinese Journal of Chemistry, 1997, 15(5): 395-404. DOI: 10.1002/cjoc.19970150503 |
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| Authors: | ZHANG Yu-Huang JIANG Bin JIANG Xi-Kui |
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| Affiliation: | ZHANG,Yu-Huang JIANG,Bin JIANG,Xi-KuiShanghai Institute of Organic Chemistry,Chinese Academy of Sciences,Shanghai 200032,China |
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| Abstract: | The fluorescence quenching coefficient (KSV) and the quenching rate constant kq of ten para-substituted styrenes (1-Ys) have been measured and correlation-analyzed by both the dual-parameter equation (Eq. 1) with (ρxσx + ρ· σ·) and the single-parameter equation (Eq. 2) with ρxσx. Excellent results have been obtained for the correlation of KSV against (ρxσmb + ρ· σ·JJ) or (ρxσ+ + ρ· σ·JJ ). Our results suggest that, possibly, there might be no need to use excited-state substituent constant for the fluorescence quenching process of excited states of styrenes. |
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| Keywords: | Fluorescence quenching correlation analysis styrenes dual-parameter equation |
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