Two 3D supramolecular polymers constructed from an amino acid and a high-nuclear Ln6Cu24 cluster node.
Two 3D supramolecular polymers constructed from an amino acid and a high-nuclear Ln6Cu24 cluster node.
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DOI：
10.1002/chem.200400018
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发表时间：
2004-08
期刊：
影响因子：
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通讯作者：
Jianjun Zhang;T. Sheng;Shengmin Hu;S. Xia;G. Leibeling;F. Meyer;Z. Fu;Ling Chen;R. Fu;Xintao Wu
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文献类型：
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作者：
Jianjun Zhang;T. Sheng;Shengmin Hu;S. Xia;G. Leibeling;F. Meyer;Z. Fu;Ling Chen;R. Fu;Xintao Wu
首次成功地构建了以高核3d-4f杂金属簇为节点的三维超分子框架。Ln 3+、Cu 2+和氨基酸在溶液中自组装形成了两种聚合物：具有原始立方网状结构的35核配合物[Sm 6Cu 29] 1和具有面心立方网状结构的36核配合物[Nd 6Cu 30] 2。甘氨酸和L-脯氨酸分别用作配体。应该注意的是，2具有手性骨架。X射线结构分析表明，1的晶体属于三斜晶系P1空间群（a=19.6451（8），B=20.4682（8），c=20.7046（8）A，α =89.453（1），β =66.290（1），γ =68.572（1）度，V=7003.0（5）A3，Z=1），2属于立方P2（1）3空间群（a=B=c=32.4341（3）A，V= 34119.7（5）A3，Z=4）。这两种配合物利用Ln 6Cu 24八面体簇作为节点和trans-Cu（氨基酸）2基团作为桥。电导率测量表明，这两种聚合物的行为作为半导体。
The first successful attempt to construct 3D supramolecular frameworks with high-nuclear 3d-4f heterometallic clusters as a node is reported. The self-assembly of Ln3+, Cu2+ and amino acid in solution leads to the formation of two polymers, 35-nuclear complex [Sm6Cu29] 1 with a primitive cubic net-like structure and 36-nuclear complex [Nd6Cu30] 2 with a face-centred cubic network type structure. Glycine and L-proline, respectively, were used as ligands. It should be noted that 2 has a chiral framework. X-ray structure analyses show that 1 crystallizes in the triclinic P1 space group (a=19.6451(8), b=20.4682(8), c=20.7046(8) A, alpha=89.453(1), beta=66.290(1), gamma=68.572(1) degrees, V=7003.0(5) A3 and Z=1) and 2 belongs to the cubic P2(1)3 space group (a=b=c=32.4341(3) A, V=34 119.7(5) A3 and Z=4). Both complexes utilize Ln6Cu24 octahedral clusters as nodes and trans-Cu(amino acid)2 groups as bridges. Electrical conductivity measurements reveal that both polymers behave as semiconductors.