Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 22, Issue 18, Pages 6345-6352Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201600162
Keywords
alkaline earth metals; dyes/pigments; methylene blue; metal-organic frameworks; porphyrins
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Funding
- National Key Basic Research Program of China [2013CB933402, 2012CB224801]
- Natural Science Foundation of China [21290174]
- Beijing Municipal Commission of Education
- Key Laboratory of Functional Inorganic Material Chemistry of Heilongjiang University
- Instrumental Analysis center of Shanghai Jiao Tong University
- University of Science and Technology Beijing
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A series of four porphyrin-alkaline earth metal-organic frameworks [Mg(HDCPP)(2)(DMF)(2)](n)center dot(H2O)(7n) (1), [Ca(HDCPP)(2)(H2O)(2)](n)(DMF)(1.5n) (2), [Sr(DCPP)(H2O)(DMA)](n) (3), and [Ba(DCPP)(H2O)(DMA)](n) (4) was isolated for the first time from solvothermal reaction between metal-free 5,15-di(4-carboxyphenyl) porphyrin (H2DCPP) 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.
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