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Probing hydrogen-bonding in binary liquid mixtures with terahertz time-domain spectroscopy: a comparison of Debye and absorption analysis.


Type

Article

Change log

Authors

Tan, Nicholas Y 
Li, Ruoyu 
Bräuer, Pierre 
D'Agostino, Carmine 
Gladden, Lynn F 

Abstract

Terahertz time-domain spectroscopy is used to explore hydrogen bonding structure and dynamics in binary liquid mixtures, spanning a range of protic-protic, protic-aprotic and aprotic-aprotic systems. A direct absorption coefficient analysis is compared against more complex Debye analysis and we observed good agreement of the two methods in determining the hydrogen bonding properties when at least one of the mixture components is protic. When both components are aprotic, we show that the trend in absorption coefficients match well with the theoretical trend in strength of hydrogen bond interactions predicted based on steric and electronic properties of the components.

Description

Keywords

Hydrogen Bonding, Methanol, Solvents, Terahertz Spectroscopy, Water

Journal Title

Phys Chem Chem Phys

Conference Name

Journal ISSN

1463-9076
1463-9084

Volume Title

17

Publisher

Royal Society of Chemistry (RSC)
Sponsorship
Engineering and Physical Sciences Research Council (EP/G011397/1)
The authors would like to acknowledge funding provided by EPSRC Grant EP/G011397/1.