Magnetic field dependent picosecond intersystem crossing. The role of molecular symmetry

被引：6
|
作者：
Gilch, P
Musewald, C
Michel-Beyerle, ME
机构：
[1] Univ Munich, Sekt Phys, D-80538 Munich, Germany
[2] Tech Univ Munich, Inst Theoret & Phys Chem, D-85747 Garching, Germany
来源：
CHEMICAL PHYSICS LETTERS | 2000年 / 325卷 / 1-3期
关键词：
D O I：
10.1016/S0009-2614(00)00677-1
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 magnetic field effects on the picosecond photo-dynamics of two different nickel(II) centered tetrapyrroles dissolved in coordinating solvents are compared. These compounds exhibit fast intersystem crossing processes with multi-exponential kinetics which are altered by external magnetic fields of some teslas. The influence of molecular symmetry on the magnitude of the field effect is investigated and treated semi-quantitatively using a stochastic Liouville approach. Modelling of the effect allows to estimate the zero-field splitting of very short-lived triplet states. (C) 2000 Elsevier Science B.V. All rights reserved.
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页码：39 / 45
页数：7
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