Fluorescent sensing and selective adsorption properties of metalorganic frameworks with mixed tricarboxylate and 1H-imidazol-4-ylcontaining ligands,
, Liu ZQ, Zhao Y, Wang P, Kang YS, Azam M, AlResayes SI, Liu XH, Lu QY, Sun WY, . 2017
Herein, two metal–organic frameworks (MOFs), [Co4(μ3-OH)2(L)(BTB)2(H2O)3]·5.6H2O (1) and
[Cd3(L)2(BTB)2(μ2-H2O)]·7.4H2O (2), based on 1,3-di(1H-imidazol-4-yl)benzene (L) and 1,3,5-tri(4-carboxyphenyl)
benzene (H3BTB), respectively, have been achieved. Compound 1 is a porous three-dimensional
(3D) framework with butterfly-like tetranuclear clusters as 7-connected nodes, and compound 2 is a 3D
net with a different topology. Remarkably, compounds 1 and 2 exhibit selective adsorption of CO2 over
N2 and methyl orange (MO) dye molecules. Magnetic measurements reveal that there are antiferromagnetic
interactions within the tetranuclear cluster in 1. Furthermore, 2 was well-dispersed in different
solvents, and their luminescent properties were investigated, and the results indicated that 2 could be
considered as a potential luminescent probe for the detection of ketone molecules.
Herein, two metal–organic frameworks (MOFs), [Co4(μ3-OH)2(L)(BTB)2(H2O)3]·5.6H2O (1) and
[Cd3(L)2(BTB)2(μ2-H2O)]·7.4H2O (2), based on 1,3-di(1H-imidazol-4-yl)benzene (L) and 1,3,5-tri(4-…