Crystal structures and IR, NMR and UV spectra of 3-formyl- and 3-acetylpyridine N(4)-methylthiosemicarbazones

Citation
H. Beraldo et al., Crystal structures and IR, NMR and UV spectra of 3-formyl- and 3-acetylpyridine N(4)-methylthiosemicarbazones, J MOL STRUC, 553, 2000, pp. 43-48
Citations number
13
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR STRUCTURE
ISSN journal
0022-2860 → ACNP
Volume
553
Year of publication
2000
Pages
43 - 48
Database
ISI
SICI code
0022-2860(20001010)553:<43:CSAINA>2.0.ZU;2-L
Abstract
3-Formyl- and 3-acetylpyridine N(4)-methylthiosemicarbazone, H3Fo4M and H3A c4M, respectively, have been prepared, their. structures solved and IR, NMR :md UV spectra recorded. Intramolecular and intermolecular hydrogen bondin g are both present, but the mode of the intermolecular interaction is diffe rent in the two compounds. Further, there is a significant difference in th eir angles between the mean planes of the pyridine ring and thiosemicarbazo ne moiety. The H-1 NMR spectral studies show significant differences betwee n the two. (C) 2000 Elsevier Science B.V. All rights reserved.