Effect of vibronically induced spin-orbit coupling of electronic ππ* states on nonradiative intersystem crossing: Naphthalene

被引：5
|
作者：
Klimenko, V. G. [1 ]
Gastilovich, E. A. [1 ]
Serov, S. A. [1 ]
Nurmukhametov, R. N. [1 ]
机构：
[1] Karpov Inst Phys Chem, State Sci Ctr Russian Federat, Moscow 105064, Russia
来源：
OPTICS AND SPECTROSCOPY | 2009年 / 106卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
HEAVY-ATOM; TRIPLET-STATES; TRANSITIONS; BENZENE; SINGLET;
D O I：
10.1134/S0030400X09040043
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The effect of (I) S (1)((1) B (2u) ) -> T (1)((3) B (1u) ) and (II) S (1) -> T (2) ((3) B (3g) ) -> T (1) transitions in naphthalene on the rate constant K (ST) (s) of the S (1) -> T (1) nonradiative transitions to all triplet sublevels s = z, y, x of the T (1) state has been investigated in the approximation of vibronically induced spin-orbit couplings, taking into account all out-of-plane vibrational modes. The shapes of the vibrational modes that are most active in these transitions are determined. The calculated values K (ST) = (0.33-0.75) x 10(7) s(-1), obtained with allowance for the I and I + II transitions, are consistent with the experimental values (K (ST))(exp) found by different researchers. It is established in all calculation versions that K (ST) > K (ST) (z) > k(ST) (x) . This relation is in qualitative agreement with the known magnetooptical data.
引用
收藏
页码：483 / 489
页数：7
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