基于柔性配体5-[N-乙酸根(4-吡啶基)]四唑(a4-pytz)与Fe(II)和Sm(III)两个配合物的合成与表征
Synthesis and Characterization of Coordination Compounds of Fe(II) and Sm(III) with a4-pytz[a4-pytz= 5-(N-acetato(4-pyridyl))tetrazole] as a Flexible Ligand

作者: 邹建华 , 李 姗 , 田 贺 , 崔汉杰 , 朱大亮 , 杨高文 , 李巧云 :常熟理工学院化学与材料工程学院,江苏省功能材料重点实验室,常熟;

关键词: a4-pytzFe(II)/Sm(III)晶体结构荧光性质a4-pytz Fe(II)/Sm(III) Crystal Structure Luminescence

摘要:

5-[N-乙酸根(4-吡啶基)]四唑钾盐(简写为Ka4-pytz)(NH4)2Fe(SO4)2SmCl3·6H2O在水-甲醇体系中反应,得到两个新的配合物,[Fe(a4-pytz)2·2H2O]·2H2O (1)[Sm4(a4-pytz)8(H2O)18]Cl3·10H2O (2)通过元素分析,红外光谱分析及X-射线单晶衍射对两个配合物进行结构表征。单晶衍射结果显示了配合物1和2都具有一维链状结构。但不同的是,配合物1的一维链是通过a4-pytz作为双齿配体,经四唑环上的氮原子和羧基的一个氧原子与Fe(II)相连而成的;而配合物2的结构形成源于羧基的桥联作用,氮原子未配位。通过氢键作用,配合物1和2形成了三维结构。室温下研究了配合物1和2的荧光性质。

Two new coordination compounds, namely, [Fe(a4-pytz)2·2H2O]·2H2O (1) and [Sm4(a4-pytz)8 (H2O)18]Cl3·10H2O (2) were prepared by reactions of K4-pytz[Ka4-pytz=5-(N-acetato(4-pyridyl)) tetrazole potassium salt] with (NH4)2Fe(SO4)2 or SmCl3·6H2O in a mixture of distilled water and methanol solution. These compounds were characterized by elemental analysis, IR and single crystal X-ray diffraction. The diffraction reveals that both 1 and 2 show 1D chains. In compound 1, a4-pytz acts as a bidentate ligand via its tetrazole-N atom and one of the carboxylate-O atoms while a4-pytz acts as tridentate bridging ligand via the two carboxylate atoms in 2. Compounds 1 and 2 show the 3D networks through hydrogen bonding interactions. Furthermore, the luminescent properties were also investigated at room temperature in the solid state.

文章引用: 邹建华 , 李 姗 , 田 贺 , 崔汉杰 , 朱大亮 , 杨高文 , 李巧云 (2014) 基于柔性配体5-[N-乙酸根(4-吡啶基)]四唑(a4-pytz)与Fe(II)和Sm(III)两个配合物的合成与表征。 合成化学研究, 2, 1-10. doi: 10.12677/SSC.2014.21001

参考文献

[1] Kou, H.Z., Gao, S., Zhang, J., et al. (2001) Unexpected assembly of a unique cyano-bridged three-dimensional Cu3Cr2 ferromagnet. Journal of the American Chemical Society, 123, 11809-11810.

[2] Zhang, W., Ye, H.Y. and Xiong, R.G. (2009) Metal-organic coordination compounds for potential ferroelectrics. Coordination Chemistry Reviews, 253, 2980-2997.

[3] Ye, Q., Song, Y.M., Wang, G.X., et al. (2006) Ferroelectric metal-organic framework with a high dielectric constant. Journal of the American Chemical Society, 128, 6554-6555.

[4] Li, Q.Y., Chen, D.Y., He, M.H., et al. (2012) Nd(III) and Dy(III) coordination compounds based on 1H-tetrazolate5-acetic acid ligands: Synthesis, crystal structures and catalytic properties. Journal of Solid State Chemistry, 190, 196201.

[5] Yang, G.W., Chen, D.Y., Zhai, C., et al. (2011) Synthesis, crystal structure and catalytic property of praseodymium(III) coordination polymer containing tetrazole-5-acetato(tza) anion ligands. Inorganic Chemistry Communications, 14, 913915.

[6] Zhu, P. and Li, H.-M. (2011) Synthesis, structure and properties of one novel 2D Mn-heterocyclic carboxylic acid complex [Mn(TPA)Cl(H2O)]n. Journal of Molecular Structure, 992, 106-110.

[7] Wu, M.F., Zheng, F.K., Xu, G., et al. (2010) Hydrothermal syntheses, structures and luminescent properties of group IIB metal coordination polymers based on bifunctional 1H-tetrazolate-5-acetic acid ligand. Inorganic Chemistry Communications, 13, 250.

[8] Yang, G.W., Li, Q.Y., Zhou, Y., et al. (2008) Two copper(II) coordination polymers containing atza ligand [atza = 5-aminotetrazole-1-acetato]. Inorganic Chemistry Communications, 11, 1239.

[9] Li, Q.Y., Yang, G.W., Yuan, R.X., et al. (2008) Bis(5-aminotetrazole-1-acetato-κO)tetraaquacobalt(II) and catena-poly [[cad-mium(II)]-bis(μ-5-aminotetrazole-1-acetato-κ3N4:O,O')]. Acta Crystallographica Section C (Crystal Structure Communications), 64, m26.

[10] Li, Q.Y., Zhou, F., Zhai, C., et al. (2011) Synthesis, structures and luminescent properties of Ca(II), Sr(II) and Pb(II) coordination compounds based on new flexible ligand 5-(2-pyrazinyl)tetrazole-2-acetic acid. Inorganic Chemistry Communications, 141, 843.

[11] Yang, J., Shen, L., Yang, G.W., et al. (2012) A set of new transition metal-based coordination complexes dependent upon Hpztza ligand (Hpztza=2-(5-(pyrazin-2-yl)-2H-tetrazol-2-yl) acetic acid). Journal of Solid State Chemistry, 186, 124.

[12] Zhang, Z.J., Xiang, S.C., Zheng, Q., et al. (2010) A rare uninodal 9-connected metal-organic framework with permanent porosity. Crystal Growth & Design, 10, 2372.

[13] Wu, M.F., Zheng, F.K., Xu, G., et al. (2010) Hydrothermal syntheses, structures and luminescent properties of group IIB metal coordination polymers based on bifunctional 1H-tetrazolate-5-acetic acid ligand. Inorganic Chemistry Communications, 13, 250.

[14] Li, X., Wu, B.L., Niu, C.Y., et al. (2009) Syntheses of metal-2-(pyridin-4-yl)-1H-imidazole-4,5-dicarboxylate networks with topological diversity: Gas adsorption, thermal stability and fluorescent emission properties. Crystal Growth & Design, 9, 3423.

[15] Perkovic, M.W. (2000) Allosteric manipulation of photoexcited state relaxation in (bpy)2RuII(binicotinic acid). Inorganic Chemistry, 39, 4962.

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