Synthesis and Crystal Structure of 1-D Chain Copper（II） Complex： [Cu（L）Cl2]n （L=2,5-Di-2-pyridyl-1,3,4-oxodiazole）
摘要
The title complex, [Cu(L)Cl2]n (L =2,5-di-2-pyridyl-1,3,4-oxodiazole)1, has been obtained from the reaction of 3,6-di-2-pyridyl-1,2,4,5-tetrazine (bptz) and CuC12·2H2O in a mixture solvent of CH3CN and CH2Cl2 (L is generated from the metal-assisted hydrolysis reaction of bptz) and structurally characterized. It crystallizes in space group C2/c of monoclinic system with cell parameters: α=9.812(2), b=12.679(3), c=11.111(2)A, β=103.92(3)°, V=1341.6(5)A3, Z=4, Dc=1.776 g/cm^3, Mr=358.66, F(000)=716, μ=2.024mm^-1 and S=1.004. The final R=0.0346 and ωR=0.0938 for 1011 observed reflections with I>2σ(I). The Cu(Ⅱ) ion is six-coordinated by four N atoms of two L ligands and two Cl^- ions in a distorted octahedral geometry. The ligand L acts as a bis-bidentate ligand to bridge the Cu(Ⅱ) ions, resulting in an infinite chain structure.