The molecular structure of the surface of water–ethanol mixtures
Literature Information
Johannes Kirschner, Anderson H. A. Gomes, Olle Björneholm, Vincenzo Carravetta, Niklas Ottosson, Arnaldo Naves de Brito, Huib J. Bakker
Mixtures of water and alcohol exhibit an excess surface concentration of alcohol as a result of the amphiphilic nature of the alcohol molecule, which has important consequences for the physico-chemical properties of water–alcohol mixtures. Here we use a combination of intensity vibrational sum-frequency generation (VSFG) spectroscopy, heterodyne-detected VSFG (HD-VSFG), and core-level photoelectron spectroscopy (PES) to investigate the molecular properties of water–ethanol mixtures at the air–liquid interface. We find that increasing the ethanol concentration up to a molar fraction (MF) of 0.1 leads to a steep increase of the surface density of the ethanol molecules, and an increased ordering of the ethanol molecules at the surface. When the ethanol concentration is further increased, the surface density of ethanol remains more or less constant, while the orientation of the ethanol molecules becomes increasingly disordered. The used techniques of PES and VSFG provide complementary information on the density and orientation of ethanol molecules at the surface of water, thus providing new information on the molecular-scale properties of the surface of water–alcohol mixtures over a wide range of compositions. This information is invaluable in understanding the chemical and physical properties of water–alcohol mixtures.
Recommended Journals
Related Literature
Enantioselective synthesis of homoallylic alcoholsvia a chiral In(iii)–PYBOX complex
Mei-Ling Hong, Shun-Jun Ji
DOI: 10.1039/B415550E
A polymer support with controllable solubility in mutually immiscible solvents
Luca Minati, Andrea Biffis
DOI: 10.1039/B413885F
Synthesis of enamines, enol ethers and related compounds by cross-coupling reactions
Juan R. Dehli, Julien Legros, Carsten Bolm
DOI: 10.1039/B415954C
Phosphodiesterolytic activity of alkaline-earth cations in aqueous DMSO
Olga Taran, Anatoly K. Yatsimirsky
DOI: 10.1039/B402432J
One molecule per particle method for functionalising nanoparticles
Robert Wilson, Yang Chen, Jenny Aveyard
DOI: 10.1039/B402786H
Stereoselective substituted pyrrolidine and cyclic ether synthesis by PhS migration
Lorenzo Caggiano, John Davies, David J. Fox, David C. Moody, Stuart Warren
DOI: 10.1039/B303790H
Formation of novel anionic gold–tin cluster compounds
Siegbert Hagen, Lars Wesemann, Ingo Pantenburg
DOI: 10.1039/B416472E
Growth of aligned carbon nanofibres over large areas using colloidal catalysts at low temperatures
B. Kleinsorge, V. B. Golovko, S. Hofmann, J. Geng, D. Jefferson, J. Robertson, B. F. G. Johnson
DOI: 10.1039/B401785D
Synthetic approach to kendomycin: preparation of the C-glycosidic core
Tetsuya Sengoku, Daisuke Uemura
DOI: 10.1039/B402391A
You might also like
How should waste containing N-Methoxy-N-methyl-1,3-thiazole-5-carboxamide (CAS: 898825-89-3) be handled?
Waste containing N-Methoxy-N-methyl-1,3-thiazole-5-carboxamide (CAS: 898825-89-3...
How should N-(4-Biphenylyl)dibenzo[b,d]furan-4-amine (CAS: 1318338-47-4) be stored?
N-(4-Biphenylyl)dibenzo[b,d]furan-4-amine should be stored in a tightly sealed c...
What is the market or research trend for 3-Acetamido-5-amino-2,4,6-triiodobenzoic acid (CAS: 1713-07-1)?
The market for 3-Acetamido-5-amino-2,4,6-triiodobenzoic acid (CAS: 1713-07-1) is...
How should Benzyl 2-O-acetyl-3,4,6-tri-O-benzyl-beta-D-galactopyranoside (CAS: 61820-03-9) be stored?
Benzyl 2-O-acetyl-3,4,6-tri-O-benzyl-beta-D-galactopyranoside (CAS: 61820-03-9) ...
What regulatory guidelines apply to 2-Ethylpiperazine dihydrochloride (CAS: 438050-52-3)?
2-Ethylpiperazine dihydrochloride (CAS: 438050-52-3) is regulated under the Glob...
What regulatory guidelines apply to 1,1'-[1,3-Phenylenebis(methylene)]bis(3-methyl-1H-pyrrole-2,5-dione) (CAS: 119462-56-5)?
1,1'-[1,3-Phenylenebis(methylene)]bis(3-methyl-1H-pyrrole-2,5-dione) (CAS: 11946...
Are there alternatives to 5-Fluoro-2-(1-pyrrolidinyl)pyridine (CAS: 1287217-79-1) in synthesis?
Several alternatives can be used in the synthesis of 5-Fluoro-2-(1-pyrrolidinyl)...
What precautions should be taken when handling 1-((2R,3R,4R,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxy-3-methoxytetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (CAS: 153631-19-7)?
Proper personal protective equipment (PPE) must be worn when handling this compo...
What precautions should be taken when handling 6-Bromoimidazo[1,2-a]pyridin-8-amine (CAS: 676371-00-9)?
When handling 6-Bromoimidazo[1,2-a]pyridin-8-amine, it is important to wear appr...
Are there alternatives to (2S,4R)-4-(4-Nitrobenzyl)pyrrolidine-2-carboxylic acid hydrochloride (CAS: 1049740-22-8) in synthesis?
Alternatives to (2S,4R)-4-(4-Nitrobenzyl)pyrrolidine-2-carboxylic acid hydrochlo...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.












![2-Methyl-2-propanyl {3-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-3-oxetanyl}carbamate structure 2-Methyl-2-propanyl {3-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-3-oxetanyl}carbamate structure](https://static.chemtradehub.com/structs/127/1279090-25-3-1b84.webp)

