Two square grid coordination polymers with manganese(II) and 1,4-bis(imidazole-1-ylmethyl)benzene
Two square grid coordination polymers with manganese(II) and 1,4-bis(imidazole-1-ylmethyl)benzene
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DOI：
10.1039/b411198b
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发表时间：
2004-09
期刊：
影响因子：
3.1
通讯作者：
E. Gao;Yan-Xia Xu;Chunhua Yan
中科院分区：
文献类型：
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作者：
E. Gao;Yan-Xia Xu;Chunhua Yan
高柔性配体1,4-双(咪唑-1-基甲基)苯(bix)分别与叠氮化锰(II)和二氰胺(dca)反应，得到两种二维配位聚合物，[Mn(N3)2(bix)2]n (1) {[Mn(dca)2(bix)2]·CH3OH}n (2)， 已对其进行了晶体学表征。在这两种配合物中，金属离子由两个轴向叠氮基或 dca− 离子（补偿电荷）和反式构象中的四个赤道 bix 配体进行八面体配位，并且 bix 配体充当金属离子之间的间隔物，形成二维 (4,4) 方形网格层。基于已知的金属-bix配合物的例子，还对bix配体的灵活性进行了简要分析，并对组装进行了一些评论。
The reactions of the highly flexible ligand 1,4-bis(imidazol-1-ylmethyl)benzene (bix) with manganese(II) azide and dicyanamide (dca), respectively, have afforded two 2-D coordination polymers, [Mn(N3)2(bix)2]n (1) {[Mn(dca)2(bix)2]·CH3OH}n (2), which have been characterized crystallographically. In both complexes, the metal ion is octahedrally coordinated by two axial azido or dca− ions, which compensate the charge, and four equatorial bix ligands in the trans conformation, and the bix ligands serve as the spacers between metal ions, resulting in 2-D (4,4) square grid layers. Based on the known examples of metal–bix complexes, a brief analysis of the flexibility of the bix ligand and some comments on the assembly are also presented.