Hydrothermal syntheses, structures and luminescent properties of d10 metal–organic frameworks based on rigid 3,3′,5,5′-azobenzenetetracarboxylic acid
Hydrothermal syntheses, structures and luminescent properties of d10 metal–organic frameworks based on rigid 3,3′,5,5′-azobenzenetetracarboxylic acid
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DOI：
10.1039/b806360e
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发表时间：
2008-09
期刊：
影响因子：
3.1
通讯作者：
Wenlong Liu;Lihua Ye;Xinfang Liu;Limin Yuan;Jiaxun Jiang;Chaoguo Yan
中科院分区：
文献类型：
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作者：
Wenlong Liu;Lihua Ye;Xinfang Liu;Limin Yuan;Jiaxun Jiang;Chaoguo Yan
在水热条件下，以3，3‘，5，5’-偶氮苯四甲酸(H4abtc)为骨架，在2，2‘-联咪唑(Biim)、1，10-邻菲咯啉(Phen)和吡啶(Py)存在下合成了4种新型D10金属有机骨架，并对其结构进行了表征。它们的公式是：[Cd(ABTC)(Biim)2]n(1)，{[Cd(ABTC)0.5(Phen)]4·4H2O}n(2)，{[Zn(Abtc)0.5(Phen)]4·2H2O}n(3)和[Zn3(Abtc)(Py)4(OH)2]n(4)。通过使用biim作为辅助配体，配合物1具有一维(1D)无限管状结构。以邻菲罗啉为辅助配体，配合物2和3的结构呈现三维(3D)(4，4)连通骨架和(4284)拓扑结构。通过使用py作为辅助配体，配合物4是一个具有(10)(83)2(8,105)拓扑结构的(2，3，4)连接骨架，其中存在-{锌-O-锌}-锯齿链和46个大环，它们通过多羧基配体连接起来形成三维超分子结构。1-4之间的结构差异表明辅助配体对配位聚合物骨架形成的重要性。此外，还研究了1-4的热稳定性和光致发光性质。
Four novel d10 metal–organic frameworks based on rigid 3,3′,5,5′- azobenzenetetracarboxylic acid (H4abtc) in the presence of auxiliary 2,2′-biimidazole (biim), 1,10-phenanthroline (phen) and pyridine (py) have been synthesized under hydrothermal conditions and structurally characterized. Their formulae are [Cd2(abtc)(biim)2]n (1), {[Cd(abtc)0.5(phen)]4·4H2O}n (2), {[Zn(abtc)0.5(phen)]4·2H2O}n (3) and [Zn3(abtc)(py)4(OH)2]n (4). Complex 1 possesses a one-dimensional (1D) infinite tubular structure by using biim as auxiliary ligand. The structures of complexes 2 and 3 exhibit three-dimensional (3D) (4,4)-connected frameworks with (4284) topologys by employing phen as auxiliary ligands. By utilizing py as auxiliary ligand, complex 4 is a (2,3,4)-connected framework with a (10)(83)2(8,105) topology in which there exists -{Zn-O-Zn}- zigzag chains and 46-member macrocycles which are linked by multicarboxylate ligands to form a 3D supramolecular structure. The structural differences among 1–4 indicate the importance of the auxiliary ligands for the framework formation of the coordination polymers. In addition, the thermal stabilities and photoluminescence properties of 1–4 are also investigated.