Spectral manifestations of bacteriochlorophyll hydrogen bonding with various polar solvents
Filin P.D.1, Zhulidin P.A.1, Plastun I.L.1
1Yuri Gagarin State Technical University of Saratov, Saratov, Russia
Email: filinbox98@gmail.com, zhulidin@mail.ru, inna_pls@mail.ru

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Interaction of bacteriochlorophyll e with various polar solvents such as water, methanol, ethanol and isopropanol has been studied. Calculations were performed using the Gaussian software package and the 6-31G (d) basis to determine the structure of bacteriochlorophyll and the properties of its hydrogen bonds. Results confirm the importance of hydrogen bonds in bacteriochlorophyll interaction with polar solvents. These solvents are most often used for extraction of bacteriochlorophylls from bacterial cells, so this work is useful for developing methods for quantitative determination of bacteriochlorophyll e in bacterial cells or in bodies of water. Keywords: bacteriochlorophyll, polar solvents, molecular modeling, infrared spectrum, density functional theory, hydrogen bonds.
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