ArticleThe journal of physical chemistry. B2023
Molecular Orientation of Carboxylate Anions at the Water-Air Interface Studied with Heterodyne-Detected Vibrational Sum-Frequency Generation.
Article in The journal of physical chemistry. B, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Self-Standing Cutin Isolate Films.Polymers · 2026Article
- Orientational Behavior and Vibrational Response of Glycine at Aqueous Interfaces.The journal of physical chemistry letters · 2024Article
- Determining the Surface pThe journal of physical chemistry. C, Nanomaterials and interfaces · 2024Article
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Authors and funding
4 authors.
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Abstract
The carboxylate anion group plays an important role in many (bio)chemical systems and polymeric materials. In this work, we study the orientation of carboxylate anions with various aliphatic and aromatic substituents at the water-air interface by probing the carboxylate stretch vibrations with heterodyne-detected vibrational sum-frequency generation spectroscopy in different polarization configurations. We find that carboxylate groups with small aliphatic substituents show a large tilt angle with respect to the surface normal and that this angle decreases with increasing size of the substituent. We further use the information about the orientation of the carboxylate group to determine the hyperpolarizability components of this group.
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