The conformational analysis of push–pull enaminones using Fourier transform IR and NMR spectroscopy, and quantum chemical calculations. IV. 4-(N,N-dimethylamino)-1,1,1-trifluoro-3-methylbut-3-en-2-one and 4-(N,N-dimethyl-amino)-1,1,1-trifluoropropen-3-en-2-one
作者:Sergey I. Vdovenko、Igor I. Gerus、Helena A. Fedorenko、Valery P. Kukhar
DOI:10.1016/j.saa.2012.10.041
日期:2013.2
main contribution made the solvent’s hydrogen bond acceptor (HBA) basicity [(E–s–Z) isomer] or the solvent’s polarity/polarizability with solvent’s hydrogen bond donor (HBD) acidity [(Z–s–Z) isomer]. Alcohols influenced on the ν˜(CC) vibrations of both isomers predominantly due to the solvent’s polarity/polarizability. In aproticsolvents the greatest contribution in solvent influence on thermodynamic