期刊
INORGANIC CHEMISTRY COMMUNICATIONS
卷 39, 期 -, 页码 70-74出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.inoche.2013.10.036
关键词
Metal cation-dependent assemblies; Interpenetrating networks; 1-(4-carboxyphenyl)-1,2,4-triazole; Selective adsorption; Fluorescence
资金
- Science and Information Technology of Guangzhou Municipal [2012J2200031]
- National Natural Science Foundation of China [91122008, 21071056, 11204090]
- Educational Commission of Guangdong Province of China [cxzd1113]
- Foundation for High-level Talents in Higher Education of Guangdong, China [C10301]
Two d(10) metal-organic frameworks (MOFs) with 1-(4-carboxyphenyl)-1,2,4-triazole (Hcpt), namely [Zn(cpt)(2)](n)(1) and {[Cd(cpt)(2)] center dot 2DMF}(n) (2), have been solvothermally synthesized by fine control over synthetic conditions, and structurally characterized. The results reveal that compound 1, once reported in literature, crystallizes in the acentric Cc space groups, in which the tetrahedral Zn2+ center in 1 coordinates to two triazole nitrogen atoms and two carboxylate oxygen atoms from four mu(2) - eta(1):eta(1) bridging cpt(-) ligands, leading to a noncentrosymmetric 5-fold interpenetrating diamondoid 3-D network. On the other hand, new compound 2 has orthorhombic and space group Pbc2(1), in which distorted octahedral Cd2+ center in 2 coordinates to two triazole nitrogen atoms and two carboxylate oxygen atoms from four mu(2) - eta(1):eta(1):eta(1) bridging cpt(-) ligands, resulting in an interesting 4-fold interpenetrating diamondoid 3-D network structures containing 1-D channels with a cross section of 9.5 x 9.3 angstrom. Considering their different topological structures, the gas adsorption experiments of 2 were carried out, and the results show that 2 presents a selective adsorption of CO2 over N-2/H-2. Moreover, the fluorescent properties of compounds 1 and 2 were also studied. (C) 2013 Elsevier B.V. All rights reserved.
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