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
DOI: 10.12677/SSC.2014.21001, PDF, HTML, 下载: 3,054  浏览: 11,451  科研立项经费支持
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-pytz；Fe(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)与(NH4)2Fe(SO4)2和SmCl3·6H2O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)和[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. 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[J]. 合成化学研究, 2014, 2(1): 1-10. http://dx.doi.org/10.12677/SSC.2014.21001

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