A carboxyl porphyrin zinc(II)–copper(II) supramolecular system with fluorescence strengthening properties |
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| Authors: | Li Tao Huang Jin-Wang Ma Li Zhang Yong-Qing Ji Liang-Nian |
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| Institution: | (1) State Key Laboratory of Optoelectronic Materials and Technologies and School of Chemistry and Chemical Engineering, Zhongshan (Sun Yat-Sen) University, Guangzhou, 510275, China;(2) Present address: College of Chemistry and Life Science, China Three Gorges University, Yichang, 443003, China |
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| Abstract: | The supramolecular self-assembly behavior, by hydrogen-bonding, of zinc(II) Zn(p-CPTPP)], copper(II) CuII-(p-CPTPP)] complexes (p-CPTPP) = 5-(p-carboxyl)-phenylene-methanamidophenyl-10,15,20-triphenylporphyrin] were studied by fluorescence spectroscopic titration and by u.v.–vis. spectra. The fluorescence strengthening character was observed in the Zn(p-CPTPP)/CuII(p-CPTPP) system in a fluorescence spectroscopic titration experiment. The formation constant was determined from the fluorescence spectroscopic titration data and the fluorescence strengthening property of the system was discussed using the fluorescence spectrum of the charge-separated state obtained by the method of spline wavelet least squares. |
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