A series of novel metal-organic coordination polymers constructed from the new 5-(4-imidazol-1-yl-phenyl)-2H-tetrazole spacer and aromatic carboxylates: Synthesis, crystal structures, and luminescence properties
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- 作者：Jiayin Sun ; Daojun Zhang ; Li Wang ; Renchun Zhang ; Junjie Wang ; Ying Zeng ; Jinling Zhan ; Jianing Xu ; Yong Fan
- 关键词：5-(4-imidazol-1-yl-phenyl)-2H-tetrazole ; Metal&ndash ; organic coordination polymers ; Solvothermal ; Luminescence properties
- 刊名：Journal of Solid State Chemistry
- 出版年：2013
- 出版时间：October, 2013
- 年：2013
- 卷：206
- 期：Complete
- 页码：286-292
- 全文大小：2685 K
文摘
Using bifunctional organic ligand 5-(4-imidazol-1-yl-phenyl)-2H-tetrazole (HL) and different aromatic carboxylates as secondary ligands, four novel metal-organic coordination polymers, [Zn(L)(1,4-bdc)0.5] (1), [Zn1.5(L)(2,5-pydc)] (2), [Zn(HL)(1,2,4,5-btec)0.5] (3), and [Cd(HL)(1,2,4,5-btec)0.5] (4) (1,4-bdc, 1,4-benzenedicarboxylate; 2,5-pydc, 2,5-pyridinedicarboxylate; 1,2,4,5-btec, 1,2,4,5-benzenetetracarboxylate) have been successfully synthesized and analyzed. Compound 1 features the 2D [Zn(L)]n layers built by ¦Ì3-L bridging ligands and Zn(II) ions, which are further linked by pillared 1,4-bdc2? ligands to form a 2-fold interpenetrating dmc framework. The 3D network of compound 2 can be simplified as a rare 2-nodal (3,6)-connected rtl (rutile) topology. Compound 3 possesses a 2D layer structure which is accomplished by connecting ladder-chains to L ligands. Compound 4 exhibits 2D [Cd(1,2,4,5-btec)] layers with infinite Cd-O-Cd rods and the adjacent 2D networks are further pillared by L with terminal bidentate coordination mode to generate the final 3D structure. The solid-state luminescent studies show that compounds 1-4 display intense fluorescent emissions.