| 共振拉曼光谱研究卟啉二酸H_4~(2+)TSPP的J-聚焦 |
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| 引用本文： | 赵慧卿,陈东明,何天敬,章应辉,刘凡镇.共振拉曼光谱研究卟啉二酸H_4~(2+)TSPP的J-聚焦[J].光散射学报,1999(3). |
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| 作者姓名： | 赵慧卿 陈东明 何天敬 章应辉 刘凡镇 |
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| 作者单位： | 安徽医科大学化学教研室，中国科技大学化学物理系 |
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| 基金项目： | 国家自然科学基金,教育部博士点专项科研基金 |
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| 摘 要： | 用共振拉曼光谱和ＵＶ Ｖｉｓ吸收光谱考察了离子强度对四一（对一磺酸基）苯基卟啉二酸（Ｈ２＋４ＴＳＰＰ）Ｊ 聚集体形成的影响。实验表明加入少量的ＮａＣｌＯ４有助于聚集体的形成，而Ｎａ ＣｌＯ４的浓度过高则倾向于形成单体。ＮａＣｌＯ４的加入不改变聚集体中分子的构型和排列方式，但高浓度的ＮａＣｌＯ４可能在聚集体中引入某种缺陷，使激子态发生局域化。我们还得到了具有宏观尺寸的纤维状Ｈ２＋４ＴＳＰＰ沉淀，并研究了其固体显微拉曼谱。
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| 关 键 词： | 共振拉曼 卟啉二酸 J-聚集 |
J Aggregation of Porphyrin Diacid H 2+ 4TSPP Studied by Resonance Raman Spectroscopy |
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| ZHAO Hui qing ,CHEN Dong Ming ,HE Tian jing ,ZHANG Ying hui ,LIU Fan chen.J Aggregation of Porphyrin Diacid H 2+ 4TSPP Studied by Resonance Raman Spectroscopy[J].Chinese Journal of Light Scattering,1999(3). |
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| Authors: | ZHAO Hui qing CHEN Dong Ming HE Tian jing ZHANG Ying hui LIU Fan chen |
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| Institution: | ZHAO Hui qing 1,CHEN Dong Ming 2,HE Tian jing 2,ZHANG Ying hui 2,LIU Fan chen 2 |
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| Abstract: | The J aggregation of tetrakis(p sulfonatophenyl) porphyrin diacid(H 2+ 4TSPP) was studied by resonance Raman and UV Vis absorption spectra. It was demonstrated that slight amount of NaClO 4 can promote the J aggregation of H 2+ 4TSPP,but high ionic strength prevents the J aggregation. Besides, it was deduced from the spectroscopic observations that high concentration of NaClO 4 can cause localization of molecular exciton. In addition, thread like molecular arrays of H 2+ 4TSPP were prepared and characterized by micro Raman spectroscopy, which suggests that the structure and arrangement of H 2+ 4TSPP in the arrays are similar to those in the J aggregates. |
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| Keywords: | Resonance Raman Porphyrin Diacid J Aggregation |
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