Absorption spectroscopy of molecular trimers

被引：22

作者：

Seibt, Joachim

Dehm, Volker

Wuerthner, Frank

Engel, Volker

机构：

[1] Inst Chem Phys, D-97074 Wurzburg, Germany

[2] Inst Organ Chem, D-97074 Wurzburg, Germany

来源：

JOURNAL OF CHEMICAL PHYSICS | 2007年 / 126卷 / 16期

关键词：

D O I：

10.1063/1.2721540

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：

Absorption properties of molecular trimers are studied within a model including a single monomer internal vibrational degree of freedom. Upon photoabsorption, three excited electronic states which are coupled excitonically are accessed. Band shapes resulting from different electronic coupling strengths and geometries are analyzed. It is shown that geometric information can be extracted from the band intensities. Taking data recorded for perylene bisimide aggregates as an example, the spectra for monomer, dimer, and trimer systems are compared. (c) 2007 American Institute of Physics.

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页数：6

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