Formation of Molecular Complexes in Liquid Benzene-Chloroform Mixtures Examined by Mid-IR 2D Correlation Spectroscopy and Multivariate Curve Resolution

O. O. Ilchenko; A. M. Kutsyk; Y. V. Pilgun; V. V. Obukhovsky; V. V. Nikonova

doi:10.15407/ujpe61.06.0508

Formation of Molecular Complexes in Liquid Benzene-Chloroform Mixtures Examined by Mid-IR 2D Correlation Spectroscopy and Multivariate Curve Resolution

Authors

O. O. Ilchenko D.F. Chebotarev State Institute of Gerontology, NAMS of Ukraine
A. M. Kutsyk Taras Shevchenko National University of Kyiv
Y. V. Pilgun Taras Shevchenko National University of Kyiv
V. V. Obukhovsky Taras Shevchenko National University of Kyiv
V. V. Nikonova Taras Shevchenko National University of Kyiv

DOI:

https://doi.org/10.15407/ujpe61.06.0508

Keywords:

Mid-IR spectroscopy, benzene, chloroform, complex formation, multivariate curve resolution, 2D correlation spectroscopy

Abstract

Mid-IR spectroscopy is used for the investigation of the formation of molecular complexes in a liquid benzene-chloroform solution. Spectra are measured in the spectral interval 2950–3100 cm−1, which corresponds to CH stretching vibrations of benzene and chloroform. The 2D correlation analysis of spectral data indicates the presence of molecular complexes in the solution. The analysis of residual spectra also supports this conclusion. Model-free and model-based analyses are applied for the decomposition of spectral data. The concentration and spectral profiles of molecular complexes are determined. The analysis shows that a complex consists of one molecule of benzene and one molecule of chloroform.

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Published

2019-01-06

How to Cite

Ilchenko, O. O., Kutsyk, A. M., Pilgun, Y. V., Obukhovsky, V. V., & Nikonova, V. V. (2019). Formation of Molecular Complexes in Liquid Benzene-Chloroform Mixtures Examined by Mid-IR 2D Correlation Spectroscopy and Multivariate Curve Resolution. Ukrainian Journal of Physics, 61(6), 508. https://doi.org/10.15407/ujpe61.06.0508

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Issue

Vol. 61 No. 6 (2016)

Section

Soft matter

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