Treatment of a heptadentate ligand 2,2＇-（（（pyridine-2,6-diyl-bis（methylene））- bis（（pyridin-2-ylmethyl）azanediyl））bis（methylene））diphenol （H2L） possessing pyridinyl- and phenolate groups, with three eq...Treatment of a heptadentate ligand 2,2＇-（（（pyridine-2,6-diyl-bis（methylene））- bis（（pyridin-2-ylmethyl）azanediyl））bis（methylene））diphenol （H2L） possessing pyridinyl- and phenolate groups, with three equivalents of Cu（C104）2·6H2O in methanol under base conditions, gave rise to a hexanuclear cluster complex [Cu6L2（OH）4]（C104）4·4MeCN·0.5MeOH （1）. Complex 1 crystallizes in triclinic, space group Pi with a = 12.068（12）, b = 12.567（12）, c = 16.279（16） A, α = 105.694（12）, β = 93.631（13）, γ = 112.017（11）°, V= 2166（4） A3, Z = 1,μ= 1.651 mm^-1, Dc = 1.599 Mg/m^3, T = 296（2） K, C74.5H795N14O24.5Cl4Cu6, Mr = 2086.12, F（000） = 1062.5, S = 1.061, R = 0.0521 and wR = 0.1270. In the cation of complex 1, the six copper cores are arranged into a two-parallel three-site strings configuration with each metal exhibits a slightly distorted square-pyramidal geometry, resulting from the connection of donor pyridinyi nitrogen and phenolate oxygen atoms in ligand H2L, and/or the oxygen donors in hydroxyl groups. In addition, magnetic susceptibility measurements revealed complex 1 displayed antiferromagnetic coupling.展开更多
Two cadmium(I)coordination polymers,[CdI(TIPA)(CDC)_(0.5)]_(n)(1)and{[Cd(TIPA)(MPDA)].H_(2)O}_(n)(2),(TIPA=tris(4-imidazolylphenyl)amine,H_(2)CDC=1,4-cyclohexanedicarboxylic acid,H_(2)MPDA=5-methylisophthalic acid),ha...Two cadmium(I)coordination polymers,[CdI(TIPA)(CDC)_(0.5)]_(n)(1)and{[Cd(TIPA)(MPDA)].H_(2)O}_(n)(2),(TIPA=tris(4-imidazolylphenyl)amine,H_(2)CDC=1,4-cyclohexanedicarboxylic acid,H_(2)MPDA=5-methylisophthalic acid),have been synthesized and characterized by IR spectroscopy,elemental analyses and single-crystal X-ray diffraction.Structural analyses reveal that complex 1 features a rare 2D→2D polyrotaxane network with(3,4)-connected(4.5^(2))(4.5^(3).7^(2))topology,which is further interlinked into a higher-dimensional supramolecular framework by intermolecular weak interactions,whereas complex 2 has a two-dimensional(3,5)-connected novel network with(42.67.8)(42.6)topology and shows a 2D→3D parallel-parallel polycatenation framework.The results show that the carboxylates exert obvious influence on the resulting architectures.Meanwhile,the solid-state photoluminescence of two complexes at room temperature was also investigated.CCDC:1557335,1;1557336,2.展开更多
基金Financially supported by the Education Department of Jiangxi Province(No.JXJG-14-10-6)Jiangxi Science and Technology Normal University
文摘Treatment of a heptadentate ligand 2,2＇-（（（pyridine-2,6-diyl-bis（methylene））- bis（（pyridin-2-ylmethyl）azanediyl））bis（methylene））diphenol （H2L） possessing pyridinyl- and phenolate groups, with three equivalents of Cu（C104）2·6H2O in methanol under base conditions, gave rise to a hexanuclear cluster complex [Cu6L2（OH）4]（C104）4·4MeCN·0.5MeOH （1）. Complex 1 crystallizes in triclinic, space group Pi with a = 12.068（12）, b = 12.567（12）, c = 16.279（16） A, α = 105.694（12）, β = 93.631（13）, γ = 112.017（11）°, V= 2166（4） A3, Z = 1,μ= 1.651 mm^-1, Dc = 1.599 Mg/m^3, T = 296（2） K, C74.5H795N14O24.5Cl4Cu6, Mr = 2086.12, F（000） = 1062.5, S = 1.061, R = 0.0521 and wR = 0.1270. In the cation of complex 1, the six copper cores are arranged into a two-parallel three-site strings configuration with each metal exhibits a slightly distorted square-pyramidal geometry, resulting from the connection of donor pyridinyi nitrogen and phenolate oxygen atoms in ligand H2L, and/or the oxygen donors in hydroxyl groups. In addition, magnetic susceptibility measurements revealed complex 1 displayed antiferromagnetic coupling.
文摘Two cadmium(I)coordination polymers,[CdI(TIPA)(CDC)_(0.5)]_(n)(1)and{[Cd(TIPA)(MPDA)].H_(2)O}_(n)(2),(TIPA=tris(4-imidazolylphenyl)amine,H_(2)CDC=1,4-cyclohexanedicarboxylic acid,H_(2)MPDA=5-methylisophthalic acid),have been synthesized and characterized by IR spectroscopy,elemental analyses and single-crystal X-ray diffraction.Structural analyses reveal that complex 1 features a rare 2D→2D polyrotaxane network with(3,4)-connected(4.5^(2))(4.5^(3).7^(2))topology,which is further interlinked into a higher-dimensional supramolecular framework by intermolecular weak interactions,whereas complex 2 has a two-dimensional(3,5)-connected novel network with(42.67.8)(42.6)topology and shows a 2D→3D parallel-parallel polycatenation framework.The results show that the carboxylates exert obvious influence on the resulting architectures.Meanwhile,the solid-state photoluminescence of two complexes at room temperature was also investigated.CCDC:1557335,1;1557336,2.
