A PORPHYRIN BEARING TETRAHYDROTHIOPHENE PICKETS - COORDINATION BEHAVIOR AND ELECTRON-TRANSFER

被引:10
作者
DSOUZA, F
KRISHNAN, V
机构
[1] INDIAN INST SCI,DEPT INORGAN & PHYS CHEM,BANGALORE 560012,KARNATAKA,INDIA
[2] INDIAN INST SCI,JAWAHARLEL NEHRU CTR ADV SCI RES,BANGALORE 560012,KARNATAKA,INDIA
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1992年 / 19期
关键词
D O I
10.1039/dt9920002873
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A novel 'picket-fence' porphyrin, 5,10,15,20-tetrakis[o-(tetrahydro-2-thenoylamino)phenyl]porphyrin (H-2L) with ligating tetrahydrothiophene rings disposed perpendicular to the porphyrin plane has been synthesised. Its zinc(II) derivative, [ZnL], binds two silver(I) ions co-operatively with a dissociation constant of 4.8 x 10(-8) dm3 mol-1. Time-resolved fluorescence lifetime measurements reveal the presence of intramolecular photoexcited electron transfer in this donor-acceptor system.
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页码:2873 / 2876
页数:4
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