Browsing by Author "Nunes, Nélson"
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- Solution enthalpies of hydroxylic compoundsPublication . Moreira, Luís; Reis, Marina; Nunes, Nélson; Elvas Leitao, Ruben; Martins, FilomenaSolution enthalpies of adamantan-1-ol, 2-methyl- butan-2-ol, and 3-methylbutan-1-ol have been measured at 298.15 K, in a set of 16 protogenic and non-protogenic solvents. The identification and quantification of solvent effects on the solution processes under study were performed using quantitative-structure property relationships. The results are discussed in terms of solute-solvent-solvent interactions and also in terms of the influence of compound's size and position of its hydroxyl group.
- Solution enthalpies of hydroxylic compoundsPublication . Reis, Marina; Moreira, Luís; Nunes, Nélson; Elvas Leitao, Ruben; Martins, FilomenaSolution enthalpies of adamantan-1-ol, 2-methyl- butan-2-ol, and 3-methylbutan-1-ol have been measured at 298.15 K, in a set of 16 protogenic and non-protogenic solvents. The identification and quantification of solvent effects on the solution processes under study were performed using quantitative-structure property relationships. The results are discussed in terms of solute-solvent-solvent interactions and also in terms of the influence of compound's size and position of its hydroxyl group.
- Solvent effects on solution enthalpies of adamantyl derivativesPublication . Martins, Filomena; Moreira, Luís; Nunes, Nélson; Elvas Leitao, RubenSolution enthalpies of 1-bromoadamantane, 1-adamantanol, and 2-adamantanone in a large set of protic and aprotic solvents are reported at 298.15 K. Solvent effects on the solution processes of these solutes are analyzed in terms of a modified TAKA equation, involving delta(cav) h (s) as the cavity term. The nature and magnitude of the major interactions which influence these processes are assessed and discussed in terms of the solutes' characteristics. New insights on the solution processes under scrutiny are presented.