AI Article Synopsis
- The standard entropies of deep eutectic solvents (DESs) are determined based on the molecular volumes of their components, which are mixtures of a hydrogen bond acceptor and donor.
- The calculated standard entropies for DES formation (Δ) are positive, indicating more complex hydrogen bonding in DESs compared to their individual components.
- A comparison with the freezing point depressions (ΔK) of DESs revealed no clear relationship between the standard entropy values and the freezing point behavior.
Article Abstract
The standard entropies of deep eutectic solvents (DESs), which are liquid binary mixtures of a hydrogen bond acceptor component and a hydrogen bod donor one, are calculated from their molecular volumes, derived from their densities or crystal structures. These values are compared with those of the components-pro-rated according to the DES composition-to obtain the standard entropies of DES formation Δ. These quantities are positive, due to the increased number and kinds of hydrogen bonds present in the DESs relative to those in the components. The Δ values are also compared with the freezing point depressions of the DESs ΔK, but no general conclusions on their mutual relationship could be drawn.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7513049 | PMC |
| http://dx.doi.org/10.3390/e20070524 | DOI Listing |
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