https://doi.org/10.1140/epjb/s10051-025-01027-9
Research - Condensed Matter
Raman spectroscopic study on solute–solvent interactions in saturated 2,2’-bipyridine and benzene solution
1
Henan Key Laboratory of Smart Lighting, School of Electronic Information, Huanghuai University, 463000, Zhumadian, Henan, China
2
Zhumadian Terahertz Technology Key Laboratory, School of Electronic Information, Huanghuai University, 463000, Zhumadian, Henan, China
3
Henan Key Laboratory of Intelligent Lighting, Huanghuai University, 463000, Zhumadian, Henan, China
Received:
14
April
2025
Accepted:
15
August
2025
Published online:
26
August
2025
Raman scattering measurements are performed on the pure benzene (B), 2,2’-bipyridine (BD), and the saturated BD-B solution at 295 and 80 K to investigate the solute–solvent interaction on the vibrational properties. The spectrum of the BD-B shows almost a simply addition of the individual spectra of BD and B, suggesting no strong interaction among BD and B molecules. At low temperature, the solution crystallizes and its spectrum shows obvious changes including the inter- and intramolecular modes, especially the modes associated with the lattice vibrations, C–H in-plane bending, C–C interring stretching, and high-frequency C–H stretching. Our work contributes to understand the interaction between organic solute and solvent.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
