Encontrados 2 documentos, a visualizar página 1 de 1
FTIR studies of hydrogen bonding between α,β-unsaturated esters and alcohols
Tonge, P.J.; Fausto, R.; Carey, P.R.The enthalpy (and entropy) of hydrogen bond formation has been measured between the ester carbonyl groups of the two α,β-unsaturated esters thienylacryloyl (TAOMe) and 5-methylthienylacryloyl (5MeTAOMe) methyl ester and the hydrogen bond donors ethanol, phenol and 3,5-dichlorophenol in CCl4. For the esters, the hydrogen bonding strengths were measured by quantitating the amount of bound and unbound donor, using...
Rotational Isomerism in CH3CH2-C(=S)SR (R = CH3, CH2CH3): A Combined Vibrational
Fausto, R.; Martins, A. Gabriela; Teixeira-Dias, J. J. C.; Tonge, P. J.; Carey, P. R.The vibrational and conformational properties exhibited by CHsCH2C(=S)SCHs and CH~CH~C(=S)SCHZCH3 were studied by Raman and infrared spectroscopies for the liquid and solid phases, and by ab initio calculations for the isolated molecule. It is shown that these molecules tend to adopt nonsymmetricconformations near the C(=S)S group, in contrast to their oxygen analogues whose most stable conformers correspond to...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||