6
• Neutral with bases, made of sugar/polyalcohols and organic bases
• Amino acid-containing natural deep eutectic solvents, made of amino acids and
sugars/organic acids
Nevertheless, the reported deep eutectic solvents do not certainly fall into one of
the above-mentioned classes given their versatility and the myriad of the considered
starting compounds. As a result, Coutinho and coworkers proposed type V deep
eutectic solvents composed of nonionic species. In their study, they proved that mixing thymol with menthol led to severe negative deviations to ideality due to a strong
interaction between the components. The latter is attributed to resonance effects
Fig. 1.2 Commonly used hydrogen bond acceptor and hydrogen bond donor compounds in deep
eutectic solvents’ preparation
T. El Achkar et al.
• Neutral with bases, made of sugar/polyalcohols and organic bases
• Amino acid-containing natural deep eutectic solvents, made of amino acids and
sugars/organic acids
Nevertheless, the reported deep eutectic solvents do not certainly fall into one of
the above-mentioned classes given their versatility and the myriad of the considered
starting compounds. As a result, Coutinho and coworkers proposed type V deep
eutectic solvents composed of nonionic species. In their study, they proved that mixing thymol with menthol led to severe negative deviations to ideality due to a strong
interaction between the components. The latter is attributed to resonance effects
Fig. 1.2 Commonly used hydrogen bond acceptor and hydrogen bond donor compounds in deep
eutectic solvents’ preparation
T. El Achkar et al.