Investigation of tetrabutylammonium bromide-glycerol-based deep eutectic solvents and their mixtures with water by spectroscopic techniques

Renáta Chromá; Mária Vilková; Ivan Shepa; Patrycja Makoś-Chełstowska; Vasil Andruch

doi:10.1016/j.molliq.2021.115617

Investigation of tetrabutylammonium bromide-glycerol-based deep eutectic solvents and their mixtures with water by spectroscopic techniques

Abstrakt

Deep eutectic solvents (DES) are formed by an acceptor and a donor of hydrogen bonds. They are generally considered as a possible alternative to hazardous organic solvents in various fields. Very recently they have also appeared in analytical chemistry, used mainly for the separation of analytes before instrumental quantification. For the development of new extraction procedures, it is important, among other things, to understand the mechanism of the extraction process itself. In this study we present NMR, IR and Raman spectroscopy studies of TBAB-Gly-based DESs at various HBA:HBD molar ratios for the neat DES as well as the DES mixed with various amounts of added water to better understand the mechanism of DES formation, intermolecular interactions in DES and the interaction of the DES with water, which have not yet been studied in detail. The obtained results indicate that hydrogen bonds between TBAB and Gly exist in the DESs at all molar ratios (1:2; 1:3; 1:4). A small amount of water added to the DES structure provides the establishment of an H-bond network, which does not weaken the existing H-bonds between the HBA and HBD, thus creating a stable supramolecular structure. However, further increasing of water amount provide to weakened of hydrogen bonds between TBAB and Gly.

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Autorzy (5)

Renáta Chromá
Mária Vilková
Ivan Shepa
Patrycja Makoś-Chełstowska dr inż.
Vasil Andruch prof.

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Wersja publikacji: Accepted albo Published Version
Licencja: otwiera się w nowej karcie

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Informacje szczegółowe

Kategoria:: Publikacja w czasopiśmie
Typ:: artykuły w czasopismach
Opublikowano w:: JOURNAL OF MOLECULAR LIQUIDS nr 330,
ISSN: 0167-7322
Język:: angielski
Rok wydania:: 2021
Opis bibliograficzny:: Chromá R., Vilková M., Shepa I., Makoś-Chełstowska P., Andruch V.: Investigation of tetrabutylammonium bromide-glycerol-based deep eutectic solvents and their mixtures with water by spectroscopic techniques// JOURNAL OF MOLECULAR LIQUIDS -Vol. 330, (2021), s.115617-
DOI:: Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.molliq.2021.115617
Weryfikacja:: Politechnika Gdańska