环状二核铜配合物[Cu(nphth)(phen)(H2O)]2·2H2O的水热合成与晶体结构

在水热反应条件下,合成了一个新配合物,[Cu(nphth)(phen)(H₂O)]₂·2H₂O(nphth=3-硝基邻苯二甲酸阴离子,phen=邻菲 咯啉),经元素分析、红外、热重、单晶衍射表征了配合物。该配合物为单斜晶系,空间群P2₁/n,结构参数：a=0.999 8(1) nm,b=1.044 5(1) nm,c=1.820 6(1) nm,β=91.423(1)°,V=1.900 7(2) nm³,Z=2,R=0.039 4,wR=0.096 5。结构分析表明,配合物为分立环状二核结构,并通过分子间氢键和π-π作用扩展为二维超分子网络结构。     

Hydrothermal Syntheses and Crystal Structures of Two Complexes with Cyclic Dimer and 2D Network Structures of 3-Nitrophthalate and N-Donor Ligand

Two complexes, [Cd(nphth)(2,2'-bipy)(H2O)]2·2H2O(1) and [Cd(nphth)(4,4'-bipy)(H2O)]n(2)(nphth = 3-nitrophthalate, 2,2'-bipy = 2,2'-bipyridine, 4,4'-bipy = 4,4'-bipyridine), were synthesized by hydrothermal reactions and structurally characterized. Complex 1 crystallizes in triclinic with space group P1, a = 0.7599(4), b = 1.0551(6), c = 1.2448(6) nm, α = 88.96(2), β = 75.40(2), γ = 76.76(2)°, V = 0.9393(9) nm3, Z = 1, Dc = 1.816 Mg/m3, F(000) = 512, μ = 1.217 mm-1, S = 0.946, the final R = 0.0238 and w R = 0.0631. Complex 2 crystallizes in monoclinic, space group P21/c, a = 0.737(5), b = 2.338(1), c = 1.0030(6) nm, β = 96.359(9)°, V = 1.803(2) nm3, Z = 4, Dc = 1.826 Mg/m3, F(000) = 984, μ = 1.260 mm-1, S = 1.016, the final R = 0.0455 and wR = 0.1007. Complex 1 exhibits a discrete cyclic binuclear structure and complex 2 possesses a 2D layer structure with cyclic binuclear unit. The fluorescent spectrum study shows that complex 1 exhibits fluorescent emission in the solid state at room temperature.     

Synthesis,Structure and Property of a 1D Coordination Polymer [Mn{5-（NO2）sal}2（phen）]n with 5-Nitrosalicylate Ligand

A new coordination polymer [Mn{5-（NO2）sal}2（phen）]n （5-（NO2）sal = 5-nitrosalicylate, phen = 1,10-phenanthroline） was synthesized by a hydrothermal reaction and characterized by elemental analysis, IR and X-ray single-crystal diffraction. The title complex crystallizes in orthorhombic, space group Pbcn with α = 25.747（8）, b = 13.220（4）, c = 7.009（3） A, V= 2386（1）A^3, Z = 4, R = 0.0427 and wR = 0.0890. The 5-nitrosalicylate anions doubly bridge the Mn（Ⅱ） atoms to form a one-dimensional polymeric chain with repeated eight-membered ring units （Mn-O-C-O）2. The crystal structure is stabilized by intra- and interchain hydrogen bonding interactions. The cyclic voltammetric behavior of the title complex is also reported.