Hydration of methanol in aqueous solutions: a Raman spectroscopic study

Autor:	S Dixit, W C K Poon, J Crain
Rok vydání:	2000
Předmět:	chemistry.chemical_compound symbols.namesake Molecular dynamics Aqueous solution chemistry Inorganic chemistry symbols Physical chemistry General Materials Science Methanol Condensed Matter Physics Raman spectroscopy
Zdroj:	Journal of Physics: Condensed Matter. 12:L323-L328
ISSN:	1361-648X 0953-8984
DOI:	10.1088/0953-8984/12/21/103
Popis:	High-resolution Raman spectroscopy was used to study methanol-water mixtures over the whole concentration range. We report a highly non-linear dependence of the carbon-oxygen and carbon-hydrogen stretching frequencies with composition. The difference between the polarized and depolarized frequencies of the carbon-oxygen stretching mode (non-coincidence effect) was also measured. Taken together, the data suggest a global picture of the progressive hydration of methanol: water first breaks up the molecular chains which exist in pure methanol, and then completely hydrates the hydroxyl groups before solvating the hydrophobic methyl groups.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::330c79293720b3d92a8905e8d7bac111 https://doi.org/10.1088/0953-8984/12/21/103 Zobrazit plný text záznamu