Silver(I) and copper(I) complexes with a Schiff base derived from 2-aminofluorene with promising antibacterial activity

被引:16
作者
Cifuentes-Vaca, Olga L. [1 ,2 ]
Andrades-Lagos, Juan [3 ]
Campanini-Salinas, Javier [4 ]
Laguna, Antonio [1 ]
Vasquez-Velasquez, David [3 ]
Concepcion Gimeno, M. [1 ]
机构
[1] Univ Zaragoza, Dept Quim Inorg, CSIC, ISQCH, E-50009 Zaragoza, Spain
[2] Univ Andres Bello, Fac Ciencias Exactas, Dept Ciencias Quim, Sede Concepcion, Autopista Concepcion Talcahuano, Talcahuano 7100, Chile
[3] Univ Chile, Fac Ciencias Quim & Farmaceut, Dept Quim Farmacol & Toxizol, Sergio Livingstone 1007, Santiago 8380492, Chile
[4] Univ San Sebastian, Fac Med & Ciencia, Lago Panguipulli 1390, Puerto Montt 550182, Chile
关键词
CO(II) COMPLEXES; CU(II); NI(II); DNA; BINDING; LIGANDS; DFT;
D O I
10.1016/j.ica.2019.02.033
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
By reaction of 2-aminofluorene with 2-pyridinecarboxaldehyde a new Schiff base (L) is obtained. The reaction of this ligand with Ag(I) and Cu(I) salts in different stoichiometry leads to the complexes [Ag(CF3SO3 )(L)PPh3] (1) or [ML2]A (M = Ag, Cu; A = CF3SO3, ClO4 or BF4). Structural characterization by X-ray crystallography has been carried out for complexes [AgL2]ClO4 (4) and [Ag(L)(PPh3)(2)] (CF3SO3) (6), which confirms the chelate nature of L and the presence of Ag center dot center dot center dot H interactions between two molecules. The biological studies show that Schiff base L presents antibacterial activity in Gram-positive bacteria and E. coli. The coordination to silver increases this activity, but the formation of the copper complex does not generate significant changes.
引用
收藏
页码:275 / 279
页数:5
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