Hydrothermal Synthesis and Crystal Structure of a Heterometallic Cu/Cd Complex with H2dipic (Pyridine-2,6-dicarboxylic Acid)

摘要

A new heterometallic complex { [Cu(pic)2(H2O)2][Cd2(Hdipic)2(H2O)2Cl2] }n (Mr =1007.73) has been synthesized under hydrothermal condition and characterized by single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a = 5.8397(4), b = 9.8664(7), c =14. 1739(10) (A), α = 82.0150(10), β = 80.4540(10), γ= 82.3570(10)°, Z = 1, V = 792.47(10) (A)3, Dc =2.112 g/cm3, μ(MoKα) = 2.247 mm-1, F(000) = 495, the final R = 0.0232 and wR = 0.0644 for 2748observed reflections (I ＞ 2σ(I)). In the complex, seven-coordinated Cd ions form a zigzag chain based on the alternated dinuclear Cd units. The neutral [Cu(pic)2(H2O)2] units are located at the centers of the inter space and fasten to the 1-D chain by hydrogen bonds.