Synthesis, crystallographic and spectroscopic characterization and magnetic properties of dimer and monomer ternary copper(II) complexes with sulfonamide derivatives and 1,10-phenanthroline. Nuclease activity by the oxidative mechanism
作者:A. Hangan、A. Bodoki、L. Oprean、G. Alzuet、M. Liu-González、J. Borrás
DOI:10.1016/j.poly.2009.12.030
日期:2010.3
activating agent show that the title complexes are potent artificial chemical nucleases, the order of efficiency being 3 > 2 ∼ 1 > 4. Control cleavage experiments indicated that the dimer complexes are stronger artificial nucleases than the [Cu(phen)2]2+ complex under the same experimental conditions, while the monomer 4 has a lower nuclease activity than the [Cu(phen)2]2+ complex. The inhibition of the cleavage
摘要3种双核和1种单核铜(II)-1,10-菲咯啉三元络合物[Cu(L1)(phen)(OH)] 2(1),[Cu(L2)(phen)(OH)] 2· 3H2O(2),[Cu(L3)(phen)(OH)] 2(3)和[Cu(L4)2(phen)(H2O)](4),带有噻二唑磺酰胺衍生物配体:HL1(N-( 5-乙基-1,3,4-噻二唑-2-基)萘-1-磺酰胺),HL2(N-(5-乙基硫基)-1,3,4-噻二唑-2-基)-4-甲基苯磺酰胺) ,HL3(N-(5-乙基-1,3,4-噻二唑-2-基)苯磺酰胺)和HL4(N-(5-乙基-1,3,4-噻二唑-2-基)-4-甲基苯磺酰胺)已被合成和表征。在这四个络合物中,每个铜原子是五个配位的。配合物1、2和3的结构由具有C2对称轴的二聚体单元组成,其中两个铜都被两个羟基阴离子桥接。磁性测量表明,根据Cu–O–Cu角度,二聚体复合物是铁磁性的。在H2O2