[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.