期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 21, 期 19, 页码 7135-7143出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201406119
关键词
crystal growth; functionalization; isoreticularity; metal-organic frameworks; UiO-66
资金
- European Community [228862]
The influence of the constitutive dicarboxylate linkers (size, functional group) over the crystallization kinetics of a series of porous Zr metal-organic frameworks with the UiO-66 topology has been investigated by in situ time-resolved energy dispersive X-ray diffraction (EDXRD). Both large aromatic spacers (2,6-naphthalene-, 4,4-biphenyl- and 3,3-dichloro-4,4-azobenzene-dicarboxylates) and a series of X-functionalized terephthalates (X=NH2, NO2, Br, CH3) were investigated in dimethylformamide (DMF) at different temperatures and compared with the parent UiO-66. Using different crystallization models, rate constants and further kinetic parameters (such as activation energy) have been extracted. Finally, the impact of the replacement of the toxic DMF by water on the crystallization kinetics was studied through the synthesis of the functionalized UiO-66-NO2 solid.
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