Raman spectroscopy of aqueous salt solutions

Mircho D. Georgiev; N. Goutev; Zh. Nickolov; Georgy K. Georgiev

doi:10.1117/12.425142

9 April 2001 Raman spectroscopy of aqueous salt solutions

Mircho D. Georgiev, N. Goutev, Zh. Nickolov, Georgy K. Georgiev

Proceedings Volume 4397, 11th International School on Quantum Electronics: Laser Physics and Applications; (2001) https://doi.org/10.1117/12.425142
Event: 11th International School on Quantum Electronics: Laser Physics and Applications, 2000, Varna, Bulgaria

Abstract

The hydrogen bonding in water and 2M aqueous solutions of NaCH₃COO, (CH₃)₄NCl, NaCl and NaCSN was studied by Raman spectroscopy of the vibrationally decoupled O-D stretching band of water. The isotropic O-D stretching spectra were modeled by means of Gibbs' statistical ensembles of hydrogen bonded oscillators. The thermodynamical parameters of the ensembles were estimated. They were related with properties of the hydrogen bond network in water. It was revealed that the salts break the structure of water reducing the strength of hydrogen bonding. According to their influence on the strength of hydrogen bonding the salts can be arranged in a series similar to the Hofmeister series of salts.

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Mircho D. Georgiev, N. Goutev, Zh. Nickolov, and Georgy K. Georgiev "Raman spectroscopy of aqueous salt solutions", Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); https://doi.org/10.1117/12.425142

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KEYWORDS

Hydrogen

Oscillators

Raman spectroscopy

Proteins

Biopolymers

Data modeling

Sodium

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