期刊
CRYSTAL GROWTH & DESIGN
卷 13, 期 4, 页码 1518-1525出版社
AMER CHEMICAL SOC
DOI: 10.1021/cg3017563
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资金
- 973 Program of China [2012CB821701]
- NSFC [U0934003, 21173272, 21121061]
- China Postdoctoral Science Foundation [20110490950, 2012T50737]
- Fundamental Research Funds for the Central Universities, and Technology Planning Project or Guangdong Province [(2011)2200053]
A unique 2-fold interpenetrated CdSO4 coordination network of the formula {[Cu-2(4-mpmd)(2)(CH3OH)(4)(opd)(2)]center dot 2H(2)O [4-pmpmd = N,Ni'-bis(4-pyridylmethyl)phenyldiimide; opd = o-phthalic acid] has been synthesized and characterized by IR spectra, thermogravimetric (TG) analyses, elemental analyses, and single crystal and powder X-ray diffraction methods. The metal organic framework (MOF) exhibits reversible dehydration and rehydration in a singlecrystal-to-single-crystal (SC-SC) process. Moreover, the dehydrated material, having coordinatively unsaturated Cu2+ sites, can encapsulate CH3OH molecules with a color change, again in a reversible SC SC fashion, and shows selective adsorption of CO2 over N-2 and H-2. This feature of obvious color variation induced by the presence of small hydroxylic molecules is highly promising for detecting hydroxylic molecules through a simple sensing mechanism. In addition, the MOP selectively interacts with hydroxylic guests and shows sorption selectivity for water, methanol, ethanol, and n-propanol over benzene guests. Notably, this compound shows complete selectivity in adsorption for n-propanol over 2-propanol owing to the effect of shape exclusion.
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