Water encapsulation by nanomicelles
- León, I. 3
- Millán, J. 2
- Cocinero, E.J. 3
- Lesarri, A. 1
- Fernández, J.A. 3
-
1
Universidad de Valladolid
info
-
2
Universidad de La Rioja
info
-
3
Universidad del País Vasco/Euskal Herriko Unibertsitatea
info
Universidad del País Vasco/Euskal Herriko Unibertsitatea
Lejona, España
- 4 sdfsdfsdf
ISSN: 1433-7851
Année de publication: 2014
Volumen: 53
Número: 46
Pages: 12480-12483
Type: Article
D'autres publications dans: Angewandte Chemie International
Résumé
Reported is the hydration of nanomicelles in the gasphase using spectroscopic methods and quantum chemical calculations. A fine-tuning of the experimental conditions allowed formation of a propofol trimer and tetramer with a water molecule and to determine the structure of the aggregates. Their electronic and IR spectra were obtained using mass-resolved laser spectroscopy, together with the number of conformational isomers for each stoichiometry. Interpretation of the spectra in the light of high-level calculations allowed determination of the cluster,s structure and demonstration that the trimer of propofol with a water molecule forms cyclic hydrogen-bond networks but, on the other hand, the tetramer is big enough to encapsulate the water molecule inside its hydrophilic core. Furthermore, these hydrated nanomicelles present an unusually high binding energy, thus reflecting their high stability and their capability to trap water inside.