Assembly and Crystal Structure of a Novel 1—D Coordination Polymer of Copper（Ⅱ）with Thiocyanate and 4—Cyanopyridine

Assembly and Crystal Structure of a Novel 1‐D Coordination Polymer of Copper (II) with Thiocyanate and 4‐Cyanopyridine

A novel one‐dimensional coordination polymer, Catena‐poly bis(4‐cyano‐pyridyl) copper(II)‐di‐thiocyanate], ¹_∞ Cu^II‐(cypy)₂(μ_N.S‐SCN)₂] (cypy = 4‐cyano‐pyridyl), was synthesized in a solution reaction of Cu(NO₃)₂·3H₂O, 4‐cyano‐pyridine and KSCN in mole ratio of 1:2:2 at room temperature. Its crystal structure was determined by single‐crystal X‐ray diffraction. The crystal belongs to monoclinic crystal system, space group P2₁/c with cell parameters a = 1.0719(2), b = 1.8441(4), c =0.9144(2) nm, β = 110.49(3)° and Z = 4. A full‐matrix least‐squares refinement gave R₁ = 0. 0393 and wR₂= 0.0916 for 1554 reflections having 1 >2σ(I). The crystal is thermally stable up to approximately 170 °C.