How Fast is a Fast Equilibrium? A New View of Reversible Reactions

被引:13
作者
Baleizao, Carlos [1 ,2 ]
Berberan-Santos, Mario N. [1 ,2 ]
机构
[1] Univ Tecn Lisboa, CQFM Ctr Quim Fis Mol, P-1049001 Lisbon, Portugal
[2] Univ Tecn Lisboa, IN Inst Nanosci & Nanotechnol, Inst Super Tecn, P-1049001 Lisbon, Portugal
关键词
fluorescence; enzyme catalysis; excited-state proton transfer; FRET; kinetics; DELAYED FLUORESCENCE; KINETICS; C-70;
D O I
10.1002/cphc.200800350
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
Reversible reactions are described in terms of kinetic cycles. From this description, two useful parameters arise: 1) average cycle duration and 2) average number of cycles. The latter applies to cycles with at least one unstable species. These parameters allow answering the question "How fast is a fast equilibrium?" in absothe lute and in relative terms, respectively. The general interest of approach is demonstrated by application to reactions drawn from several areas: Acid-base equilibria, enzyme kinetics, excited-state proton transfer, thermally activated delayed fluorescence, monomer-excimer kinetics and homo-FRET
引用
收藏
页码:199 / 205
页数:7
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