The coordination polymer [Cu(CH3COO)(C5H5N)2]n was synthesized and its crystal structure has been determined by X-ray diffraction technique. The crystal belongs to monoclinic,space group C2/c with a=1.183 2(1) nm,b=1.512 1(2) nm,c=1.391 1(1) nm,β=97.137(3)°,V=2.469 6(4) nm3,C12H13CuN2O2,Mr=280.78,Z=8,Dc=1.510 g·cm-3,μ=1.759 mm-1,F(000)=1 152,R1=0.048 2 and wR2=0.122 5 for 1 515 observed reflections [I>2σ(I)]. In the crystal the copper(Ⅱ) atom is tetra-coordinated primarily by two oxygen atoms of two symmetry-related carboxyl groups of acetate anions and two nitrogen atoms of two pyridine ligands in a parallelogram fashion. All of the pyridine rings linked to Cu(1) and Cu(2) are arranged centrosymmetrically on Cu(1). The neighboring copper complex molecules are linked together by the carboxylate oxygen atom of acetate anions to form an infinite one-dimensional linear chain structure. Moreover,π-π stacking interactions between intrachain pyridine molecules play the crucial role in constructing of the supramolecular structure.
