An investigation on the fluorescence quenching of 9-aminoacridine by certain pyrimidines

被引：9
|
作者：
Manivannan, C. [1 ]
Renganathan, R. [1 ]
机构：
[1] Bharathidasan Univ, Sch Chem, Tiruchirappalli 620024, Tamil Nadu, India
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2011年 / 82卷 / 01期
关键词：
9-Aminoacridin; Fluorescence quenching; Uracils; ELECTRON-TRANSFER; METHYLENE-BLUE; DYNAMICS; STATE; GUANINE; DAMAGE; PROBE; DYE; DBO;
D O I：
10.1016/j.saa.2011.07.080
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The fluorescence quenching of 9-aminoacridine by certain substituted uracils in water was studied using absorption, steady state and time resolved measurements. The bimolecular quenching rate constants (k(q)), binding constant K and number of binding sites (n) were calculated based on the fluorescence quenching data. The free energy change (Delta G(et)) for electron transfer process was calculated by Rehm-Weller equation. From lifetime measurement we observed that the quenching was mainly due to static mechanism involving ground state complex formation. (C) 2011 Elsevier B.V. All rights reserved.
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页码：475 / 480
页数：6
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