Incorporation of an A1/A2-Difunctionalized Pillar[5]arene into a Metal–Organic Framework
Journal of the American Chemical Society2012Vol. 134(42), pp. 17436–17439
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Nathan L. Strutt, David Fairen‐Jiménez, Julien Iehl, Marianne B. Lalonde, Randall Q. Snurr, Omar K. Farha, Joseph T. Hupp, J. Fraser Stoddart
Abstract
An efficient synthetic route to an A1/A2-difunctionalized pillar[5]arene containing resolvable planar chirality has been developed and the arene employed as a strut in the synthesis of P5A-MOF-1, which has been demonstrated by X-ray powder diffraction analysis--supported by modeling--to be isoreticular with MOF-5. This metal-organic framework has an active domain that expresses good and selective uptake of neutral and positively charged electron-poor aromatic guests, which effect color changes of the cubic crystals from faint yellow to deep orange, arising from charge transfer between the guests and active domain of P5A-MOF-1.
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