Two new copper coordination polymers [Cu(μ2-4,4?-bipyridine)(NO2)2]n (C10H8- N4O4Cu, Mr = 311.75) 1 and [Cu(μ2-4,4?-bipyridine)2(H2O)2]n?2n(4,4?-bipyridine)?2nClO4?nH2O (C40H38N8O11Cl2Cu, Mr = 941.22) 2 were synthes...Two new copper coordination polymers [Cu(μ2-4,4?-bipyridine)(NO2)2]n (C10H8- N4O4Cu, Mr = 311.75) 1 and [Cu(μ2-4,4?-bipyridine)2(H2O)2]n?2n(4,4?-bipyridine)?2nClO4?nH2O (C40H38N8O11Cl2Cu, Mr = 941.22) 2 were synthesized by hydrothermal reaction and determined by X-ray diffraction method. Compound 1 crystallizes in monoclinic, space group P2/m with a = 4.7740(10), b = 11.039(2), c = 5.6752(14) ?, β = 91.394(9)o, V = 299.00(11) ?3, Z = 1, Dc = 1.731 g/cm3, F(000) = 157 and μ(MoKa) = 0.7107 mm-1. Compound 2 crystallizes in monoclinic, space group P2/n with a = 12.916(2), b = 11.149(1), c = 15.006(2) ?, β =106.642(6)o, V = 2070.3(5) ?3, Z = 2, Dc = 1.510 g/cm3, F(000) = 970 and μ(MoKa) = 0.7107 mm-1. In the structure of compound 1, the metal atom is in a slightly distorted octahedral CuO4N2 geometry surrounded by four O atoms of two NO2 ligands in the equatorial positions and two N atoms from 4,4?-bipyridine ligands in the axial sites, and the 4,4?-bipyridine ligands bridge the neighboring Cu2+ atoms to form polymeric chains in the lattice. Compound 2 has a 2D square-grid network structure. The square grids are superposed on each other to form a channel framework. The square cavity has dimensions of 11.148(2)? ×11.229(3)?. Every two guest 4,4?-bipyridine molecules are clathra- ted in each hydrophobic host cavity and further stabilized by π-π stacking and hydrogen bonding interactions.展开更多
基金This work was supported by the National Natural Science Foundation of China (No. 20173063) the State Key Basic Research and Development Plan of China (001CB108906) and the NSF of Fujian Province (E0020001)
文摘Two new copper coordination polymers [Cu(μ2-4,4?-bipyridine)(NO2)2]n (C10H8- N4O4Cu, Mr = 311.75) 1 and [Cu(μ2-4,4?-bipyridine)2(H2O)2]n?2n(4,4?-bipyridine)?2nClO4?nH2O (C40H38N8O11Cl2Cu, Mr = 941.22) 2 were synthesized by hydrothermal reaction and determined by X-ray diffraction method. Compound 1 crystallizes in monoclinic, space group P2/m with a = 4.7740(10), b = 11.039(2), c = 5.6752(14) ?, β = 91.394(9)o, V = 299.00(11) ?3, Z = 1, Dc = 1.731 g/cm3, F(000) = 157 and μ(MoKa) = 0.7107 mm-1. Compound 2 crystallizes in monoclinic, space group P2/n with a = 12.916(2), b = 11.149(1), c = 15.006(2) ?, β =106.642(6)o, V = 2070.3(5) ?3, Z = 2, Dc = 1.510 g/cm3, F(000) = 970 and μ(MoKa) = 0.7107 mm-1. In the structure of compound 1, the metal atom is in a slightly distorted octahedral CuO4N2 geometry surrounded by four O atoms of two NO2 ligands in the equatorial positions and two N atoms from 4,4?-bipyridine ligands in the axial sites, and the 4,4?-bipyridine ligands bridge the neighboring Cu2+ atoms to form polymeric chains in the lattice. Compound 2 has a 2D square-grid network structure. The square grids are superposed on each other to form a channel framework. The square cavity has dimensions of 11.148(2)? ×11.229(3)?. Every two guest 4,4?-bipyridine molecules are clathra- ted in each hydrophobic host cavity and further stabilized by π-π stacking and hydrogen bonding interactions.
