具有1,4 - 二（1H - 咪唑 - 4 - 基）苯和不同羧酸配体的金属有机框架用于选择性传感Fe(iii)离子和酮分子。

Metal-organic frameworks with 1,4-di(1H-imidazol-4-yl)benzene and varied carboxylate ligands for selectively sensing Fe(iii) ions and ketone molecules.

作者信息

Liu Zhi-Qiang, Zhao Yue, Zhang Xiu-Du, Kang Yan-Shang, Lu Qing-Yi, Azam Mohammad, Al-Resayes Saud I, Sun Wei-Yin

机构信息

Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China.

出版信息

Dalton Trans. 2017 Oct 17;46(40):13943-13951. doi: 10.1039/c7dt02981k.

DOI:10.1039/c7dt02981k

PMID:28972233

Abstract

Four new metal-organic frameworks (MOFs) [Zn(L)(bpdc)]·1.6HO (1), [Co(L)(bpdc)]·HO (2), [Ni(L)(bptc)(HO)]·2HO (3) and [Cd(L)(Hbptc)] (4) were achieved by reactions of the corresponding metal salt with mixed organic ligands of 1,4-di(1H-imidazol-4-yl)benzene (L) and 4,4'-benzophenonedicarboxylic acid (Hbpdc) or biphenyl-2,4',5-tricarboxylic acid (Hbptc). They exhibit varied structures: MOFs 1 and 4 are porous three-dimensional (3D) frameworks, while 2 is an infinite one-dimensional (1D) chain and 3 is a two-dimensional (2D) network. Remarkably, 1 and 4 can act as potential fluorescent materials for sensing Fe(iii) ions and different ketone molecules with high selectivity and sensitivity. In addition, MOF 1 shows selective adsorption of CO over N.

摘要

通过相应金属盐与1,4-二(1H-咪唑-4-基)苯(L)和4,4'-二苯甲酮二羧酸(Hbpdc)或联苯-2,4',5-三羧酸(Hbptc)的混合有机配体反应，得到了四种新型金属有机框架材料(MOFs)：[Zn(L)(bpdc)]·1.6H₂O (1)、[Co(L)(bpdc)]·H₂O (2)、[Ni(L)(bptc)(H₂O)]·2H₂O (3)和[Cd(L)(Hbptc)] (4)。它们呈现出不同的结构：MOFs 1和4是多孔三维(3D)框架，而2是无限一维(1D)链，3是二维(2D)网络。值得注意的是，1和4可作为潜在的荧光材料，用于高选择性和高灵敏度地传感Fe(iii)离子和不同的酮分子。此外，MOF 1对CO的吸附选择性高于N₂。