Synthesis, Crystal Structure, and Interaction with DNA of a Novel Coordination Polymer: {[Cd(Pmal)(Bipy)] · 4H2O}_n

摘要

A novel coordination polymer {[Cd(Pmal)(Bipy)] · 4H2O}_n (I), where Bipy = 2,2'-Bipyridine, Pmal = phenethylmalonate, has been synthesized and characterized using IR, ~1H NMR, elemental analysis, and single-crystal X-ray diffractometry. The unit cell parameters for complex I: a = 12.3752(15), b = 6.8283(9), c= 13.4739(17) A, β = 91.108(2)°, V= 1138.4(2) A~3, Z= 2, space group P2_1. The binding of complex I with fish sperm DNA (FS-DNA) was investigated by fluorescence spectroscopy, showing that the complex has the ability of interaction with DNA. Gel-electrophoresis assay demonstrates the ability of complex I to cleave the pBR322 plasmid DNA.