title: Porphyrin-Alkaline Earth MOFs with the Highest Adsorption Capacity for Methylene Blue.
abstract: A series of four porphyrin-alkaline earth metal- organic frameworks [Mg(HDCPP)2 (DMF)2 ]n ⋅(H2 O)7 n (1), [Ca(HDCPP)2 (H2 O)2 ]n (DMF)1.5 n (2), [Sr(DCPP)(H2 O)(DMA)]n (3), and [Ba(DCPP)(H2 O)(DMA)]n (4) was isolated for the first time from solvothermal reaction between metal-free 5,15-di(4- carboxyphenyl)porphyrin (H2 DCPP) and alkaline earth ions. Single-crystal X-ray diffraction analysis reveals the 2D and 3D supramolecular network with periodic nanosized porosity for 1/2 and 3/4, respectively. The whole series of MOFs, in particular, compounds 1 and 2 with intrinsic low molecular formula weight, exhibit superior adsorption performance for methylene blue (MB) with excellent capture capacity as represented by the thus far highest adsorption amount of 952 mg g(-1) for 2 and good selectivity, opening a new way for the potential application of the main group metal-based MOFs.
authors.affiliation: Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, P.R. China.|Department of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, 453003, P.R. China.
authors.forename: Yuxia
authors.initials: Y
authors.lastname: Hou
authors.affiliation: Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, P.R. China.
authors.forename: Junshan
authors.initials: J
authors.lastname: Sun
authors.affiliation: College of Chemical Engineering, Shandong University of Technology, Zibo, 255049, P.R. China.
authors.forename: Daopeng
authors.initials: D
authors.lastname: Zhang
authors.affiliation: Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, P.R. China. jianzhuang@ustb.edu.cn.
authors.forename: Dongdong
authors.initials: D
authors.lastname: Qi
authors.affiliation: Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, P.R. China. qdd@ustb.edu.cn.
authors.forename: Jianzhuang
authors.initials: J
authors.lastname: Jiang
keywords: alkaline earth metals; dyes/pigments; metal-organic frameworks; methylene blue; porphyrins