KINETICS OF DIFFUSION-CONTROLLED PROCESSES IN LIQUIDS. THEORETICAL CONSIDERATION OF LUMINESCENT SYSTEMS: QUENCHING AND EXCITATION TRANSFER IN COLLISION

KINETICS OF DIFFUSION-CONTROLLED PROCESSES IN LIQUIDS. THEORETICAL CONSIDERATION OF LUMINESCENT SYSTEMS: QUENCHING AND EXCITATION TRANSFER IN COLLISION
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液体中扩散控制过程的动力学。

DOI:
10.1063/1.1724945
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发表时间:
1964
影响因子:
4.4
通讯作者:
M. Burton
M. Burton
中科院分区:
化学2区
文献类型:
--
作者:
J. Yguerabide;M. Dillon;M. Burton

文献摘要

被引文献

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溶液中反应粒子的总体行为是由特定的分子性质和相遇概率决定的。本文研究了扩散和局部非均匀分布的细节对反应粒子系统的总体行为的影响,包括稳态条件和初始条件产生后的衰变(或弛豫)现象。用具有适当初始条件和边界条件的激发态和淬灭态分子的扩散方程来表述溶液中激发态分子的猝灭问题。在完全确定但任意的情况下,淬灭分子在激发态分子周围的初始分布以及两组边界条件(即所谓的Smoluchowski边界条件和“辐射”边界条件)求解了扩散方程。所得到的方程反过来又给出了初始随机分布下受激分子衰变的表达式。
The over‐all behavior of reacting particles in solution is determined both by specific molecular properties and by probability of encounter. This paper presents an examination of the effect of the details of diffusion and locally inhomogeneous distributions on the over‐all behavior of a system of reacting particles both for steady‐state conditions and for the decay (or relaxation) phenomena subsequent to creation of an initial condition.The problem is formulated for the quenching of excited molecules in solution in terms of diffusion equations for excited and quencher molecules with appropriate initial and boundary conditions. The diffusion equations are solved for a completely determined, but otherwise arbitrary, initial distribution of quencher molecules around an excited molecule and two sets of boundary conditions: the so‐called Smoluchowski and ``radiation'' boundary conditions. The resultant equations give, in their turn, expressions for decay of excited molecules for initial random distributions fo...