CRYSTAL STRUCTURE OF A TWO-DIMENSIONAL CO(II) COORDINATION POLYMER: [Co(Ој-PP)2(SCN)2]n [PP = 2-(PYRIDINE-3-YLOXY)PYRAZINE]
H. Li, H.-Y. Zhao, S.-G. Zhang, J.-M. Shi
Keywords: crystal structure, cobalt(II) complex, 2D polymer, layered structure
Pages: 386-390
Abstract
Solvothermal reaction (water/methanol) of cobalt perchlorate hexahydrate, sodium thiocyanate and 2-(pyridine-3-yloxy)pyrazine (PP) resulted in the formation of a two-dimensional coordination polymer [Co(μ-PP)2(SCN)2]n. The solid complex has been characterized by elemental analysis and IR spectroscopy; its crystal structure was determined by X-ray crystallography. The complex crystallizes in the monoclinic system, space group P21/n, a = 7.4643(19), b = 9.237(2), c = 15.540(4) Å, β = 94.995(5)°, V = 1067.4(5) Å3, Z = 1. In the crystal structure each 2-(pyridine-3-yloxy)pyrazine molecule acts as a bidentate bridging ligand coordinating to two adjacent Co(II) ions with Co…Co separation of 9.5176(18) Å to yield a two-dimensional sheet structure in the plane (-1 0 1).
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