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Science 23 September 2005:
Vol. 309. no. 5743, pp. 2040 - 2042
DOI: 10.1126/science.1116275
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Reports

A Chromium Terephthalate-Based Solid with Unusually Large Pore Volumes and Surface Area

G. Férey,1,2* C. Mellot-Draznieks,3 C. Serre,1 F. Millange,1 J. Dutour,1 S. Surblé,1 I. Margiolaki4

We combined targeted chemistry and computational design to create a crystal structure for porous chromium terephthalate, MIL-101, withverylargeporesizes and surface area. Its zeotype cubic structure has a giant cell volume (~702,000 cubic angstroms), a hierarchy of extra-large pore sizes (~30 to 34 angstroms), and a Langmuir surface area for N2 of ~5900 ± 300 square meters per gram. Beside the usual properties of porous compounds, this solid has potential as a nanomold for monodisperse nanomaterials, as illustrated here by the incorporation of Keggin polyanions within the cages.

1 Institut Lavoisier, CNRS Unité Mixte de Recherche 8637, Université de Versailles St-Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France.
2 Institut universitaire de France, 103, Boulevard Saint-Michel, 75005 Paris, France.
3 Royal Institution, 21 Albemarle Street, London W1S 4BS, UK.
4 European Radiation Synchotron Facility, 38042 Grenoble, France.

* To whom correspondence should be addressed. E-mail: ferey{at}chimie.uvsq.fr

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Role of Solvent-Host Interactions That Lead to Very Large Swelling of Hybrid Frameworks.
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