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Synthesis,Structure and Luminescent Properties of [Zn(btzb)_2Cl_2]·2H_2O [btzb=1,2-Bis(5-tetrazolyl)benzene]

Synthesis,Structure and Luminescent Properties of [Zn(btzb)_2Cl_2]·2H_2O [btzb=1,2-Bis(5-tetrazolyl)benzene]
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摘要 The title compound [Zn(btzb)2Cl2]·2H2O (1·2H2O, btzb = 1,2-bis(5-tetrazolyl)ben- zene) was synthesized in situ by the [2+3] cycloaddition reaction of phthalonitrile with NaN3 in water in the presence of ZnCl2 under refluxing conditions. 1·2H2O crystallizes in the monoclinic system, space group P2 1/c with a = 9.0119(18), b = 7.5566(15), c = 18.076(5)A, β= 114.67(2)°, V= 1118.6(4)A^3, Z = 2, Dc = 1.784 g/cm^3, T= 223(2) K, C16H16N16O2Cl2Zn, Mr = 600.74, F(000) = 608, μ(MoKα) = 1.393 mm^-1, S = 1.081, R = 0.0306 and wR = 0.0669 for 1896 observed reflections with I 〉 2σ(I). The Zn^2+ ion of 1 is coordinated by four N atoms from two btzb ligands and two Cl atoms, forming a distorted octahedral coordination geometry. A number of intermolecular hydrogen bon- ding interactions between molecules 1 and/or the solvated water molecules result in a 3D hydrogen-bonded structure. The luminescent property of 1·2H2O was also investigated. The title compound [Zn(btzb)2Cl2]·2H2O (1·2H2O, btzb = 1,2-bis(5-tetrazolyl)ben- zene) was synthesized in situ by the [2+3] cycloaddition reaction of phthalonitrile with NaN3 in water in the presence of ZnCl2 under refluxing conditions. 1·2H2O crystallizes in the monoclinic system, space group P2 1/c with a = 9.0119(18), b = 7.5566(15), c = 18.076(5)A, β= 114.67(2)°, V= 1118.6(4)A^3, Z = 2, Dc = 1.784 g/cm^3, T= 223(2) K, C16H16N16O2Cl2Zn, Mr = 600.74, F(000) = 608, μ(MoKα) = 1.393 mm^-1, S = 1.081, R = 0.0306 and wR = 0.0669 for 1896 observed reflections with I 〉 2σ(I). The Zn^2+ ion of 1 is coordinated by four N atoms from two btzb ligands and two Cl atoms, forming a distorted octahedral coordination geometry. A number of intermolecular hydrogen bon- ding interactions between molecules 1 and/or the solvated water molecules result in a 3D hydrogen-bonded structure. The luminescent property of 1·2H2O was also investigated.
出处 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2008年第3期335-339,共5页 结构化学(英文)
基金 the National Natural Science Foundation of China (No. 20525101) the NSF of Jiangsu Province (No. BK2004205) the Specialized Research Fund for the Doctoral Program of Higher Education (No. 20050285004) State Key Laboratory of Coordination Chemistry
关键词 zinc(II) complex 1 2-bis(5-tetrazolyl)benzene SYNTHESIS crystal structure luminescent properties zinc(II) complex, 1,2-bis(5-tetrazolyl)benzene, synthesis, crystal structure, luminescent properties
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