Absorption and Fluorescence Excitation Spectra of 9-(N-carbazolyl)-anthracene: Effects of Intramolecular Vibrational Redistribution and Diabatic Transitions Involving Electron Transfer †
Absorption and Fluorescence Excitation Spectra of 9-(N-carbazolyl)-anthracene: Effects of Intramolecular Vibrational Redistribution and Diabatic Transitions Involving Electron Transfer †
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9-(N-咔唑基)-蒽的吸收和荧光激发光谱：分子内振动再分布和涉及电子转移的非绝热跃迁的影响 †
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
P. Zimmermann
中科院分区：
文献类型：
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作者：
F. Evers;§. J. Giraud;S. Grimme;J. Manz;C. Monte;M. Oppel;W. Rettig;and P. Saalfrank;P. Zimmermann
用一个简单的模型测量和计算了9-（N-咔唑基）-蒽（C9 A）的振动激发S1态的吸收光谱和荧光激发光谱。因此，C9 A从扭转状态被激发|电子基态S 0到非绝热扭转态的转变|11的明亮的电子激发态S1，这是耦合到状态|暗电子激发态S2.此外，所有扭转状态都与C9 A的其他振动耦合。模型参数是从我们以前的论文得到的实验和理论的荧光发射光谱和荧光寿命的C9 A的良好协议。目前的实验和理论的吸收和荧光激发光谱的额外协议证实了简单的模型，这意味着相当弱的耦合的扭转亮态S1，但强耦合的暗态S2的其他振动的C9 A，分别。这表明，不同的电…
The absorption and fluorescence excitation spectra of 9-(N-carbazolyl)-anthracene (C9A) in vibronically excited S1 states are measured and calculated by means of a simple model. Accordingly, C9A is excited from torsional states |0j〉 of the electronic ground-state S0 to diabatic torsional states |1l〉 of the bright electronically excited state S1, which are coupled to states |2l〉 of the dark electronically excited-state S2. In addition, all torsional states are coupled to the other vibrations of C9A. The model parameters are adapted from our previous papers yielding good agreement of the experimental and theoretical fluorescence emission spectrum and fluorescence lifetimes of C9A. The present additional agreement for the experimental and theoretical absorption and fluorescence excitation spectra confirms the simple model, which implies rather weak couplings of the torsional bright state S1 but strong coupling of the dark state S2 to the other vibrations of C9A, respectively. This points to different electro...