Metal–organic coordination architectures of 9,10-bis(N-benzimidazolyl)anthracene: syntheses, structures and emission properties
Metal–organic coordination architectures of 9,10-bis(N-benzimidazolyl)anthracene: syntheses, structures and emission properties
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DOI：
10.1039/b701551h
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发表时间：
2007-05
期刊：
影响因子：
3.1
通讯作者：
Lei Li;Tong‐Liang Hu;Jian-Rong Li;Duo-Zhi Wang;Yong-Fei Zeng;X. Bu
中科院分区：
文献类型：
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作者：
Lei Li;Tong‐Liang Hu;Jian-Rong Li;Duo-Zhi Wang;Yong-Fei Zeng;X. Bu
在我们对功能性金属-有机配位结构的研究中，设计了一种新的金属-有机配位体系[N-苯并咪唑基]蒽（L），并与CuI，AgI，CdII，MnII盐反应，得到了5种新的金属-有机配位体系[CuLi]2·2CHCl 3·H2O（1），[CdL 2（NO3）2]·4C 2 H5 OH（2），[AgL（BF 4）]·3CHCl 3（3），[AgL（NO3）]·2CHCl 3（4）和[MnL 2Cl 2]·2CHCl 3（5）进行了元素分析、红外光谱和X射线晶体学表征。在1中，CuI离子采取四面体配位几何，并且刚性配体桥接两个双核[Cu 2 I2]单元以形成二维（2-D）层。图2和图5示出了具有（4，4）拓扑的二维网络结构，其中金属离子具有八面体配位几何构型。3和4显示一维（1-D）链结构，但由于阴离子的影响，显示不同的晶体堆积模式。这些结果表明，配体的性质，金属配位几何和抗衡阴离子对这类配合物的结构拓扑结构有重要影响。此外，配合物1-4在室温下在固态下显示出强的蓝光发射。
In our continuing efforts to investigate functional metal-organic coordination architectures, a benzimidazole-based rigid ligand, 9,10-bis(N-benzimidazolyl)anthracene (L), has been designed and used to react with CuI, AgI, CdII, MnII salts, giving rise to five new metal-organic coordination architectures, [CuLI]2·2CHCl3·H2O (1), [CdL2(NO3)2]·4C2H5OH (2), [AgL(BF4)]·3CHCl3 (3), [AgL(NO3)]·2CHCl3 (4) and [MnL2Cl2]·2CHCl3 (5), which were characterized by elemental analyses, IR spectroscopy, and X-ray crystallography. In 1, the CuI ion takes tetrahedral coordination geometry, and the rigid ligands bridge two dinuclear [Cu2I2] units to form a two-dimensional (2-D) layer. 2 and 5 show 2-D network structure with (4,4) topology in which the metal ions have octahedral coordination geometry. 3 and 4 display one-dimensional (1-D) chain structures, but show different crystal packing modes due to the effect of anions. These results indicate that the nature of ligand, metal coordination geometry and counter-anions have important effects on the structural topologies of such complexes. Furthermore, complexes 1–4 display strong blue emissions in solid state at room temperature.