| Abstract: Two 1D chain-like copper(Ⅱ) complexes were obtained by using N，N′-Bis(2-pyridyl)pyridine-2,6-dicarboxamide (H2L) and picolinic acid. X-ray crystal structure analysis was carried out to determine the crystal structures. The crystal of the complex 1, {Cu3L2(C4H4O4)·10H2O}n, belongs to triclinic system, with space group P1, a=0.706(1) nm, b=1.113(8) nm, c=1.288(7) nm, α=110.810(5)°, β=90.422(6)°, γ=101.183(6)°, V=0.926 2(2) nm3, Z=1; The crystal of the complex 2, {Cu(pic)2·2H2O}n, (Hpic=picolinic acid) belongs to triclinic system with space group P1, a=0.513(6) nm, b=0.765(0) nm, c=0.924(6) nm, α=74.839(4)°, β=84.386(5)°, γ=71.401(5)°, V=0.332 3(0) nm3, Z=1. 1 exhibits a 3D structure by hydrogen bonds formed among uncoordinated water molecules; whereas the complex 2 forms a 1D chain-like structure constructed by weak coordination bonds. CCDC: 603470, 1; 608265, 2. |
