2006•Chemical ResearchRequires access

Synthesis and Crystal Structure of Acetate-bridged Dinuclear Copper Complex of 2-Amino-5-nitropyridine

Xianyou Wang

Abstract

Reaction of 2-amino-5-nitropyridine with Cu(CH_(3)COO)_(2) yielded a new acetate-bridged dinuclear copper(II) complex [Cu(CH_(3)COO)_(2)(C_(5)H_(5)N_(3)O_(2))]_(2)·2H_(2)O in which the copper(II) atom is five-coordinated by one N atom of pyridine ring and four O atoms of bridging acetate anions in a distorted square pyramid.The complex [Cu(CH_(3)COO)_(2)(C_(5)H_(5)N_(3)O_(2))]_(2)·2H_(2)O crystallizes in the monoclinic system,space group P2_(1)/c with cell parameters: a=0.834 5(8),b=2.001(2),c=0.808 1(8) nm,β=96.734(4)°,V=1.340(2) nm~(3),Z=2,Mr=657.37,Dc=1.629 g/cm~(3),F(000)=652,μ=1.663 mm~(-1).The final R_(1)=0.060 4,wR_(2)=0.126 4.The complex shows an UV absorption peak at 207 nm and an emission peak at 419 nm.IR and elemental analyses were also used to characterize the complex.

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Key concepts: Monoclinic crystal system, Copper, Crystal structure, Chemistry, Crystallography, Pyridine, Square pyramid, Ring (chemistry)