Synthesis, structure and properties of a 4,4'-bipyridine bridged dinuclear Cu(II) complex: {Cu2(4,4'-bipy)[HOCH2CH2N(CH2CH2NH2)2]2}· (ClO4)4·1/2(4,4'-bipy)·4H2O
Titel:
Synthesis, structure and properties of a 4,4'-bipyridine bridged dinuclear Cu(II) complex: {Cu2(4,4'-bipy)[HOCH2CH2N(CH2CH2NH2)2]2}· (ClO4)4·1/2(4,4'-bipy)·4H2O
A new bicopper(II) complex was synthesized and characterized by X-ray crystallography. Crystals of the complex were monoclinic, space group C2 with a = 33.717(10), b = 12.078(4), c = 11.386(3) Å and β = 103.980(6)°. The two Cu(II) atoms are bridged by 4,4'-bipyridine and each Cu(II) is five-coordinate in a distorted trigonal-bipyramid geometry. Magnetic investigation shows that the complex has a weak ferromagnetic interaction between the two metal ions. A cyclic voltammogram of the complex shows two quasi-reversible peaks for the couples CuIICuII/CuICuII and CuICuII/CuICuI. Study of the antimicrobial activity showed the complex was active against Candida albican, Staphylococcus aureu, Bacillus pumilus and Eschierichia coli.