This work resulted from research support by the U. S. National Science Foundation (CHE-0349313), the Robert A. Welch Foundation (B-1542), the Texas Advanced Research Program (009741-0089-2007), and the U. S. Department of Energy (DE-FC26-06NT42859).
1521-3773/asset/2002_left.gif?v=1&s=ac6b0d94a94d7ce7a210002b8096b42feffc0bcf)
1521-3773/asset/2002_right.gif?v=1&s=451042aa3415ae3ad0729984d26dee1866aca82e)
Communication
Crystallographic Observation of Dynamic Gas Adsorption Sites and Thermal Expansion in a Breathable Fluorous Metal–Organic Framework†
Article first published online: 9 JAN 2009
DOI: 10.1002/anie.200804739
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Yang, C., Wang, X. and Omary, M. (2009), Crystallographic Observation of Dynamic Gas Adsorption Sites and Thermal Expansion in a Breathable Fluorous Metal–Organic Framework. Angewandte Chemie International Edition, 48: 2500–2505. doi: 10.1002/anie.200804739
- †
Publication History
- Issue published online: 17 MAR 2009
- Article first published online: 9 JAN 2009
- Manuscript Received: 28 SEP 2008
Funded by
- U. S. National Science Foundation. Grant Number: CHE-0349313
- Robert A. Welch Foundation. Grant Number: B-1542
- Texas Advanced Research Program. Grant Number: 009741-0089-2007
- U. S. Department of Energy. Grant Number: DE-FC26-06NT42859
Keywords:
- adsorption;
- crystal breathing;
- fluorinated ligands;
- metal–organic frameworks;
- thermal expansion
Graphical Abstract
Playing accordion: Cooling a single crystal of a microporous fluorous metal–organic framework under ambient atmosphere leads to very large breathing upon gas adsorption, during which multiple N2 molecules are filled into channels and cages (see picture). While the framework exhibits remarkable positive thermal expansion under vacuum, a gigantic apparent negative thermal expansion takes place when the crystal is exposed to N2 at ambient pressure.
Abstract
Playing accordion: Cooling a single crystal of a microporous fluorous metal–organic framework under ambient atmosphere leads to very large breathing upon gas adsorption, during which multiple N2 molecules are filled into channels and cages (see picture). While the framework exhibits remarkable positive thermal expansion under vacuum, a gigantic apparent negative thermal expansion takes place when the crystal is exposed to N2 at ambient pressure.