CHARGE-TRANSFER COMPLEXES OF PYRENE WITH DINITROBENZENE AND TRINITROBENZENE ACCEPTORS

被引：4

作者：

AYAD, MM ^{[1
]}

机构：

[1] TANTA UNIV,FAC SCI,DEPT CHEM,TANTA,EGYPT

来源：

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 1994年 / 187卷

关键词：

PYRENE CT COMPLEXES; EQUILIBRIUM CONSTANTS; FLUORESCENCE QUENCHING; ELECTRICAL CONDUCTIVITY;

D O I：

10.1524/zpch.1994.187.Part_1.123

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The charge transfer (CT) complexes formed between pyrene with some Dinitrobenzenes (DN B) and 1,3,5-Trinitrobenzene (TNB) acceptors are studied in solution and solid state using UV-visible, infrared and fluorescence spectroscopies. The equilibrium constants (K(c)) for these complexes in solution have been calculated. The values or K(c) follow the order o-DNB > m-DNB < p-DNB < TNB. This order is explained by considering the role that steric effects may play in the CT complex formation. In addition, the fluorescence quenching of pyrene with different acceptors is investigated. The effect of medium viscosity and temperature on the efficiency of quenching is also studied. Finally, the electrical properties for the solid CT complexes are measured.

引用

页码：123 / 133

页数：11

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