摘要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.
Abstract：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.
ZHOU Mi;JIANG Yong-Heng;LU Guo-Hui;GAO Shu-Qin;LI Zuo-Wei. Excitonic Coupling between B and Q Transitions in Porphyrin Aggregates[J]. 中国物理快报, 2009, 26(8): 83201-083201.
ZHOU Mi, JIANG Yong-Heng, LU Guo-Hui, GAO Shu-Qin, LI Zuo-Wei. Excitonic Coupling between B and Q Transitions in Porphyrin Aggregates. Chin. Phys. Lett., 2009, 26(8): 83201-083201.
[1] Koepke J, Hu X, Muenke C, Schulten K and Michel H 1996 Structure 4 581 [2] Olson J M 1998 Photochem. Photobiol. 67 61 [3] McDermott G., Prince S M, Freer A A,Hawthornthwaite-Lawless A M, Papiz M Z, Cogdell R G and Isaacs N W1995 Nature 374 517 [4] Shinsuke O and Hiroshi S 2003 J. Am. Chem. Soc. 125 2792 [5] Stephanie C D, Saravanarajan S D, Eric A and Jeanne L M2005 J. Am. Chem. Soc. 127 5885 [6] Myong Y C, Jennifer A, Pollard M, Adam W and Jeanne L M2003 J. Am. Chem. Soc. 125 810 [7] Massimo D N, Sara N, Roberto P M, Grac\"{ua H V, RosariaL and Roberto P 2004 J. Am. Chem. Soc. 126 5934 [8] Karol\'{\ina S, Blanka V and Peter M 2005 J. Mol.Struct. 744--747 265 [9] Lucimara P F, Aggarwal I E and Borissevitch A 2006 Spectrochim. Acta A 63 227 [10] Adler A D, Longo F R, Finarelli J D, Goldmacher J, AssourJ and Korsakoff L 1967 J. Org. Chem. 32 476 [11] Alexander V U, Masatoshi T and Gerd K 2003 J. Mol.Struct. 660 15 [12] Gouterman M 1961 J. Mol. Spectrosc. 6 138 [13] Gouterman M and Georges H W 1963 J. Mol. Spectrosc. 11 108 [14] Gouterman M, Dewey H and Eliot L 1977 Chem. Phys. 25 139
2009, Vol. 26 
