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Conformational and electronic interaction studies of 2-fluoro-substituted N,N-dimethylacetamides
Abstract The ν CO IR analysis of the 2-fluoro-substituted N,N -dimethylacetamides RC(O)NMe 2 [RFCH 2 ( 1 ), F 2 CH ( 2 ) and F 3 C ( 3 )] and of the parent N,N -dimethylacetamide [RCH 3 ( 4 )] inExpand
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Conformational studies of α-substituted carbonyl compounds. Part 1. Conformation and electronic interaction in hetero-substituted acetones by infrared and ultraviolet spectroscopy
νCO Frequencies and intensities and n→π* transition energies were measured for some heterosubstituted ketones (XCH2COMe : X = F, Cl, Br, I, NMe2, OMe, SMe, or SEt) and compared with the correspondingExpand
  • 30
A conformational analysis of some alpha-aryloxy p-substituted-acetophenones: Solvent effects on the nu(co) infrared bands
Les analyses ν C O des acetophenones α-(p-phenoxy-substituees)-p '-substituees- [X-Ph-C(O)-CH 2 -O-Ph-Y; X=NO 2 , Y=OMe (1); X= NO 2 , H (2); X=NO 2 , Y= NO 2 (3); X=H, Y=OMe (4); X= H, Y=H (5); X=Expand
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CONFORMATIONAL AND ELECTRONIC INTERACTION STUDIES OF α-SUBSTITUTED CARBONYL COMPOUNDS. XIV. α-(ARYLSULFONYL)-p-SUBSTITUTED ACETOPHENONES[1]
Abstract The νCO IR analysis of α-(p-phenylsulfonyl)-p-substituted acetophenones X-⊘C(O)CH2S(O)2⊘-Y 1–8, being X and Y = NO2, H and OMe substituents, supported by Molecular Mechanics data of theExpand
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CONFORMATIONAL AND ELECTRONIC INTERACTION STUDIES OF α-SUBSTITUTED CARBONYL COMPOUNDS. XI. ω-(p-PHENYLTHIO)-p-SUBSTITUTED ACETOPHENONES
Abstract The analysis of the vco bands in the I.R. spectra of ω-(p-phenylthio)-p-substituted acetophenones indicates the presence of cislgauche rotational isomerism. The decreasing cislgauche ratioExpand
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Conformational and electronic interaction studies of α-substituted carbonyl compounds. Part 9. ω-Hetero-substituted acetophenones
νCO frequencies and intensities, n→π*CO transition energies and α-methylene carbon chemical shifts were measured for some ω-hetero-substituted acetophenones (φCOCH2X: X = F, OMe, NMe2, NEt2, Cl, Br,Expand
  • 16
Hyperconjugative interactions in halogen-substituted carbonyls: ultraviolet photoelectron spectroscopy of ω-halogenoacetophenones
The HeI and HeII photoelectron spectra of the para-substituted ω-halogenoacetophenones Y-C6H4COCH2X [Y = NO2, CN, H, OCH3, N(CH3)2; X = H, Cl, Br, I] are assigned on the basis of theExpand
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Electronic interaction in heterosubstituted acetones studied by means of ultraviolet photoelectron and electron transmission spectroscopy
The HeI and HeII photoelectron and the electron transmission spectra of some heterosubstituted acetones CH3COCH2X [X = F, Cl, Br, I, SC2H5, OCH3, N(CH3)2, and C2H5] have been recorded. They have beenExpand
  • 12
Spectroscopic evidences for the hyperconjugative interaction in 2-bromosubstituted acetophenones
Abstract Several 2-bromo-4′-substituted acetophenomes were investigated by vibrational and electronic spectroscopies. The solvent effect on the bands assigned to μCO and μC-Br together with theExpand
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