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Updated: Jun 20, 2026

Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy
Published on: August 13, 2019
Microstructures formation in a seemingly ideal homogeneous mixture of ethanol and methanol: An experimental evidence
Cesar Mello1, Thomás Mello, Eza Sevéri
1Instituto de Química, Universidade de Franca, Franca, SP, Brazil. camello@unifran.br
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.
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