Back to Search
Start Over
Easy and Effective Method for α-CD:N 2 O Host–Guest Complex Formation.
- Source :
-
International Journal of Molecular Sciences . May2024, Vol. 25 Issue 10, p5472. 12p. - Publication Year :
- 2024
-
Abstract
- α-CD:N2O "host-guest" type complexes were formed by a simple solid–gas reaction (N2O sorption into α-CD) under different gas pressures and temperatures. The new N2O inclusion method applied in the present study was compared with the already known technique based on the crystallization of clathrates from a water solution of α-CD saturated with N2O. A maximum storage capacity of 4.5 wt.% N2O was achieved when charging the cyclodextrin from a gas phase. The amount of included gas decreases to 1.3 wt.% when the complex is stored in air at 1 atm and room temperature, analogous to that achieved by the crystallization of α-CD:N2O. Furthermore, it was shown that the external coordination of N2O to either the upper or lower rim of α-CD without hydration water displacement is the preferred mode of binding, due to hydrogen bonds with neighboring -OH groups from the host macrocycle and three of the hydration water molecules nearby. The capacity of α-CD to store N2O and the thermal stability of the α-CD:N2O complex demonstrated promising applications of these types of complexes in food and beverages. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CYCLODEXTRINS
*THERMAL stability
*HYDROGEN bonding
*CLATHRATE compounds
*SORPTION
Subjects
Details
- Language :
- English
- ISSN :
- 16616596
- Volume :
- 25
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- International Journal of Molecular Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 177489081
- Full Text :
- https://doi.org/10.3390/ijms25105472