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Citation: Shen Tao, Yuan Zhenli, Xu Huijun. EVALUATION OF FLUORESCENCE LIFETIME OF ZINC PHTHALOCYANINES BY NON-TRANSIENT EXPERIMENTS[J]. Acta Physico-Chimica Sinica, ;1985, 1(03): 265-269. doi: 10.3866/PKU.WHXB19850311 shu

EVALUATION OF FLUORESCENCE LIFETIME OF ZINC PHTHALOCYANINES BY NON-TRANSIENT EXPERIMENTS

1.
Institute of Photographic Chemistry; Academia Sinica

Received Date: 21 November 1984
Available Online: 15 June 1985

A series of zinc phthalocyanines was synthesized. Their redox potentials, E_(ox) and E_R were measured by means of cyclic voltammetry. Their kinetic datum, κ_qτ of fluorescence quenching by typical electron acceptor was determined. The theoretical relation of the fluorescence quenching rate constant, κ_q vs. the electron transfer free enthalpy change, △G was calculated from redox potential and spectral datum, and κ_q was calculated from the theoretical relation between κ_q and △G. By substituting κ_q into κ_qτ, the lifetime of dye's fluorescence can be evaluated by non-transient experiments and simple calculations. In comparing with data in literature, the average fluorescence lifetime of the dye obtained is receivable.
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