The photoluminescence and gas sorption properties of three Cd(II) MOFs based on 1,3,5-benzenetribenzoate with -NH2 or -OH groups.
The functionalization and modification of the ligand 1,3,5-tris(4-carboxyphenyl)benzene (H3BTB) have been realized with amine (NH2-H3BTB) and hydroxy (HO-H3BTB) groups. Three new Cd(II) compounds based on R-H3BTB ligands (R = -NH2 and -OH) have been synthesized and structurally characterized. Compounds 1 and 2 show pillared-layer frameworks and display strong fluorescence emission ability. Compound 3 features a 3D porous framework with trinuclear Cd units linked by the NH2-BTB ligand. The activated framework of 3 has good gas storage and separation properties for CO2 and hydrocarbons.
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China. zhj@fjirsm.ac.cn.
Hong-Ru
HR
Fu
Fei
F
Wang
Jian
J
Zhang