Dipyridophenazine complexes of cobalt(III) and nickel(II): DNA-Binding and photocleavage studies

被引:162
作者
Arounaguiri, S [1 ]
Maiya, BG [1 ]
机构
[1] UNIV HYDERABAD, SCH CHEM, HYDERABAD 500046, ANDHRA PRADESH, INDIA
关键词
D O I
10.1021/ic9508684
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Results of absorption titration, thermal denaturation, and differential pulse voltammetric experiments suggest that [Co(phen)(2)DPPZ](3+) and [Ni(phen)(2)DPPZ](2+) (phen = 1, 10-phenanthroline and DPPZ = dipyrido[3,2-a:2',3'-c]phenazine) are both avid binders of calf thymus DNA. On the other hand, while the cobalt(III) complex has been found to effect the photocleavage of the supercoiled pBR 322 DNA, the nickel(II) complex is ineffective under similar experimental conditions.
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页码:4267 / +
页数:1
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