Excitonic Coupling between B and Q Transitions in Porphyrin Aggregates

ZHOU Mi; JIANG Yong-Heng; LU Guo-Hui; GAO Shu-Qin; LI Zuo-Wei

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Excitonic Coupling between B and Q Transitions in Porphyrin Aggregates

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The properties of meso-tetraphenylporphine (TPP) aggregates formed in acidic aqueous-organic solutions are investigated by UV-vis spectroscopy.According to the absorption spectra,the Q band absorption of the aggregated TPP shows red shift and intensity enhancement,and a model that includes the participation of water molecules in a porphyrin aggregation complex is proposed,then a qualitative explanation based on Gouterman's excition coupling theory is presented.Calculations including eigenenergies,eigenstates and the transition dipole strength of the coupled states are carried out.

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《中国物理快报：英文版》 |2009年第8期|100-102|共3页
作者
ZHOU Mi; JIANG Yong-Heng; LU Guo-Hui; GAO Shu-Qin; LI Zuo-Wei;
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作者单位

State Key Laboratory of Superhard Materials,College of Physics,Jilin University,Changchun 130023;

State Key Laboratory of Superhard Materials,College of Physics,Jilin University,Changchun 130023;

State Key Laboratory of Superhard Materials,College of Physics,Jilin University,Changchun 130023;

State Key Laboratory of Superhard Materials,College of Physics,Jilin University,Changchun 130023;

State Key Laboratory of Superhard Materials,College of Physics,Jilin University,Changchun 130023;

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中图分类物理学;
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Excitonic Coupling between B and Q Transitions in Porphyrin Aggregates

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