Four metal-organic frameworks built from distinct secondary building blocks: Syntheses, structures, photoluminescence and photocatalytical properties
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- 作者：Peng Du ; Yan Yang ; Ying-Ying Liu ; Yuan-Chun He ; Hong-Mei Zhang ; Jian-Fang Ma
- 关键词：Coordination polymers ; Luminescence ; Photocatalysis
- 刊名：Polyhedron
- 出版年：9 March, 2014
- 年：2014
- 卷：70
- 期：Complete
- 页码：180-187
- 全文大小：2787 K
文摘
Four metal-organic frameworks (MOFs), namely [Cu4(L)2(渭3-OH)2(CH3OH)2(H2O)] (1), [Co2(L)(渭3-OH)(H2O)2] (2), [Cd2(L)(渭3-OH)(H2O)2] (3) and [Cd9(L)4(渭3-OH)4(CH3O)2(H2O)2]路(H2O)路2(CH3OH) (4) where H3L = (3,5-dicarboxyl-phenyl)-(4-(2鈥?carboxyl-phenyl)-benzyl) ether, have been prepared. Compound 1 displays a (3,6)-connected net with kgd (kagome dual) topology based on discrete {Cu4} secondary building blocks. Compounds 2 and 3 possess similar two-dimensional (2D) structures, which are constructed by L anions and rod-shaped SBUs. In compound 4, neighboring {Cd9} units are bridged by carboxylate groups to build a rod-shaped SBU. These SBUs are further extended by L anions into a 3D framework. The optical band gaps of 1 and 2 and the photoluminescent behaviors of 3 and 4 have been investigated. In addition, the photocatalytic activities of compounds 1 and 2 have been estimated under UV irradiation.