一价阳离子对卟啉二酸H_4^(2+)TSPP^(4-)J-聚集的影响  

J-AGGREGATION OF PORPHYRIN DIACID H_4^(2+) TSPP BY CATIONS

作　　者：赵慧卿[1] 陈东明[2] 章应辉[2] 何天敬[2] 王秀燕[2] 刘凡镇[2] 

机构地区：[1]安徽医科大学化学教研室,安徽合肥230032 [2]中国科技大学化学物理系,安徽合肥230026

出　　处：《化学研究与应用》2000年第2期211-213,共3页Chemical Research and Application

基　　金：国家自然科学基金;教育部博士点专项科研基金

摘　　要：The effect of cations(H +,Li +,Na + and K +) on the J aggregation of tetrakis( p sulfonatophenyl) porphyrin diacid (H 2+ 4TSPP 4- ) was studied by UV Vis absorption spectra.It was demonstrated that the presence of these cations promotes the J aggregation of H 2+ 4TSPP,implying that the external cations are necessary to balance the Coulomb repulsion between the sulfonate groups of adjacent H 2+ 4TSPP 4- molecules in the J aggregate.The excitionic energy of the J aggregate was evaluated under the dipole dipole interaction,which is qualitatively consistent with the experimental result.The results support the staircase structural model of the aggregate.The effect of cations(H +,Li +,Na + and K +) on the J aggregation of tetrakis( p sulfonatophenyl) porphyrin diacid (H 2+ 4TSPP 4- ) was studied by UV Vis absorption spectra.It was demonstrated that the presence of these cations promotes the J aggregation of H 2+ 4TSPP,implying that the external cations are necessary to balance the Coulomb repulsion between the sulfonate groups of adjacent H 2+ 4TSPP 4- molecules in the J aggregate.The excitionic energy of the J aggregate was evaluated under the dipole dipole interaction,which is qualitatively consistent with the experimental result.The results support the staircase structural model of the aggregate.

关 键 词：卟啉 J-聚集 台阶式结构 H^2+4TSPP^4- 

分 类 号：O626.13[理学—有机化学]