This work was financially supported by the FIRB program and Cariplo foundation. B. Moltrasio is acknowledged for ab-initio calculations.
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Communication
Fast Molecular Rotor Dynamics Modulated by Guest Inclusion in a Highly Organized Nanoporous Organosilica†
Article first published online: 8 FEB 2010
DOI: 10.1002/anie.200906255
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Comotti, A., Bracco, S., Valsesia, P., Beretta, M. and Sozzani, P. (2010), Fast Molecular Rotor Dynamics Modulated by Guest Inclusion in a Highly Organized Nanoporous Organosilica. Angewandte Chemie International Edition, 49: 1760–1764. doi: 10.1002/anie.200906255
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Publication History
- Issue published online: 22 FEB 2010
- Article first published online: 8 FEB 2010
- Manuscript Received: 6 NOV 2009
Keywords:
- host–guest systems;
- hybrid materials;
- molecular dynamics;
- NMR spectroscopy;
- porosity
Graphical Abstract
Rotor speed regulation in the hybrid walls of porous p-phenylenesilica can be achieved by guest uptake and removal. A graduation from slow to ultrafast motional regimes (k=104–108 s−1) can be experienced by the molecular rotors depending on guest nature and temperature, as detected by solid-state spin-echo 2H NMR spectroscopy (see picture).