Thermodynamics and X-ray studies of 2-alcohol monolayers at the air water interface

Autor:	Anne Renault, Franck Artzner, Coralie Alonso, C. Zakri, Michel Goldmann, Bruno Berge
Rok vydání:	1998
Předmět:	Materials science X-ray Alcohol Bragg peak Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Surface tension chemistry.chemical_compound chemistry law Ellipsometry Monolayer Physical chemistry Racemic mixture Crystallization
Zdroj:	The European Physical Journal B. 1:189-196
ISSN:	1434-6028
DOI:	10.1007/s100510050170
Popis:	We investigate monolayers of 2-alcohols (2-C9 to 2-C16) obtained by placing a drop of pure alcohol at the water surface. These alcohols are chiral molecules and we study the racemic mixtures. By ellipsometry and surface tension measurements we are able to characterize the 2D crystallization-melting transition with temperature. We find a first order transition. Using X-ray under grazing incidence we show that the racemic mixture crystallizes at 2D on a hexagonal cell. We find a parity effect on the lateral pressure at the transition and on the stability of the Bragg peak. We compare all results with those observed for 1-alcohols.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6a75119d76c94ec7cdb7695a5a716640 https://doi.org/10.1007/s100510050170 Zobrazit plný text záznamu Full text from SpringerLink