A new complex [Co（4,4＇-bpy）2（H2O）2（4-FBA）2]·（4,4＇-bpy）（1） has been hydro-thermally synthesized using cobalt,4,4＇-bipyridyl（4,4＇-bpy） and 4-fluorobenzoic acid（4-HFBA）,and characterized by thermal...A new complex [Co（4,4＇-bpy）2（H2O）2（4-FBA）2]·（4,4＇-bpy）（1） has been hydro-thermally synthesized using cobalt,4,4＇-bipyridyl（4,4＇-bpy） and 4-fluorobenzoic acid（4-HFBA）,and characterized by thermal analysis,single-crystal X-ray diffraction and magnetic property.The complex crystallizes in the triclinic system,space group P,Z = 1.Crystal data：C54H44CoF2N8O6,Mr = 997.90,a = 9.134（2）,b = 11.555（2）,c = 12.867（3） ,α = 66.02（3）,β = 77.96（3）,= 73.11（3）°,V = 1180.9（4） 3,Dc = 1.403 g/cm3,μ（MoKα） = 0.433 mm-1,F（000） = 517,the final R = 0.0633 and wR = 0.1171 for 2152 observed reflections（I 〉 2σ（I））.The title complex is assembled into 1D supramolecular chains parallel to [001] based on the adjacent molecular ··· stacking interactions and hydrogen bonds.The variable temperature magnetic measurements show a weak ferromagnetic behavior over 300-160 K followed by antiferromagnetic behavior below 160 K for the title complex.展开更多
One novel binuclear Co（Ⅱ） coordination polymer ∞ [Co2（4,4＇-bpy）2（L）4] （1, bpy = bipyridine, HL = 2-fluorbenzoic acid） has been hydrothermally synthesized and structurally characterized by elemental analysis...One novel binuclear Co（Ⅱ） coordination polymer ∞ [Co2（4,4＇-bpy）2（L）4] （1, bpy = bipyridine, HL = 2-fluorbenzoic acid） has been hydrothermally synthesized and structurally characterized by elemental analysis, IR and X-ray single-crystal diffraction. Complex 1 crystallizes in the monoclinic system, space group P21/c with a = 11.163（2）, b = 21.943（4）, c = 9.6381（19） A, β = 113.92（3）°, V= 2158.2（7） A3, Z= 4, Dc = 1.518 g/cm^3, Mr = 493.31, F（000） =1004, R = 0.0303 and wR = 0.0808 for 3614 observed reflections （I〉 2σ（I））. Complex I exhibits a 3D Schlafli symbol （4.62）（4.66.83） topological framework, and the magnetic characterization shows weak antiferromagnetic coupling exchange between two Co ions.展开更多
文摘A new complex [Co（4,4＇-bpy）2（H2O）2（4-FBA）2]·（4,4＇-bpy）（1） has been hydro-thermally synthesized using cobalt,4,4＇-bipyridyl（4,4＇-bpy） and 4-fluorobenzoic acid（4-HFBA）,and characterized by thermal analysis,single-crystal X-ray diffraction and magnetic property.The complex crystallizes in the triclinic system,space group P,Z = 1.Crystal data：C54H44CoF2N8O6,Mr = 997.90,a = 9.134（2）,b = 11.555（2）,c = 12.867（3） ,α = 66.02（3）,β = 77.96（3）,= 73.11（3）°,V = 1180.9（4） 3,Dc = 1.403 g/cm3,μ（MoKα） = 0.433 mm-1,F（000） = 517,the final R = 0.0633 and wR = 0.1171 for 2152 observed reflections（I 〉 2σ（I））.The title complex is assembled into 1D supramolecular chains parallel to [001] based on the adjacent molecular ··· stacking interactions and hydrogen bonds.The variable temperature magnetic measurements show a weak ferromagnetic behavior over 300-160 K followed by antiferromagnetic behavior below 160 K for the title complex.
基金supported by the National Natural Science Foundation of China(51343003)the Scientific Research Projects of Zhejiang Provincial Education Department(Y201224707)
文摘One novel binuclear Co（Ⅱ） coordination polymer ∞ [Co2（4,4＇-bpy）2（L）4] （1, bpy = bipyridine, HL = 2-fluorbenzoic acid） has been hydrothermally synthesized and structurally characterized by elemental analysis, IR and X-ray single-crystal diffraction. Complex 1 crystallizes in the monoclinic system, space group P21/c with a = 11.163（2）, b = 21.943（4）, c = 9.6381（19） A, β = 113.92（3）°, V= 2158.2（7） A3, Z= 4, Dc = 1.518 g/cm^3, Mr = 493.31, F（000） =1004, R = 0.0303 and wR = 0.0808 for 3614 observed reflections （I〉 2σ（I））. Complex I exhibits a 3D Schlafli symbol （4.62）（4.66.83） topological framework, and the magnetic characterization shows weak antiferromagnetic coupling exchange between two Co ions.
