title: Microstructures formation in a seemingly ideal homogeneous mixture of ethanol and methanol: An experimental evidence and two-dimensional correlation spectroscopy approach.
abstract: An anomalous solution behavior at the molecular scale was observed for macroscopically homogeneous mixtures of methanol and ethanol. Two-dimensional Raman correlation spectroscopy was used to elucidate the possible existence of microstructures formed in the mixture. The result suggests that separate methanol and ethanol clusters are formed without heterohydrogen bonding between different alcohol species. Supramolecular structures seem to be formed by the interaction of such clusters with each other through cohesion and dispersion forces, but not through direct hydrogen bonding connections.
authors.affiliation: Instituto de Química, Universidade de Franca, Franca, SP, Brazil. camello@unifran.br
authors.forename: Cesar
authors.initials: C
authors.lastname: Mello
authors.forename: Thomás
authors.initials: T
authors.lastname: Mello
authors.forename: Eza
authors.initials: E
authors.lastname: Sevéri
authors.forename: Lucinda
authors.initials: L
authors.lastname: Coelho
authors.forename: Diórginis
authors.initials: D
authors.lastname: Ribeiro
authors.forename: Antônio
authors.initials: A
authors.lastname: Marangoni
authors.forename: Ronei J
authors.initials: RJ
authors.lastname: Poppi
authors.forename: Isao
authors.initials: I
authors.lastname: Noda
mesh_terms: D000431:Ethanol / Q000737:chemistry*; D000432:Methanol / Q000737:chemistry*; D013059:Spectrum Analysis, Raman
chemical_list: D000431:Ethanol; D000432:Methanol