Original scientific paper

Molecular Conformation of Aza-substituted Benzanilides by Electronic Absorption Spectra and Dipole Moments

S. Fasone ; Institute of Physical Chemistry, Univer sity of Catani a, Viale A. Doria 8, 95125 Catania, Italy
G. Buemi ; Institute of Physical Chemistry, Univer sity of Catani a, Viale A. Doria 8, 95125 Catania, Italy
D. Grasso ; Institute of Physical Chemistry, Univer sity of Catani a, Viale A. Doria 8, 95125 Catania, Italy
C. Gandolfo ; Institute of Physical Chemistry, Univer sity of Catani a, Viale A. Doria 8, 95125 Catania, Italy

Abstract

The electronic absorption spectra of thirteen pyridine aromatic
amides of general formula R1-CO-NH- R2 (Ri, R2 = pyridil or
phenyl) were obtained in methanol and dioxane solution.
The band assignment is briefly discussed.
The dipole moments were measured in dioxane at 25 ± 0.1 °c
and compared with values calculated by both the S. H. M. 0. method
and vectorial model. The comparison suggests the most probable
conformation of derivatives which have the nitrogen either in the
ortho or meta position in one or both rings of the molecule.

Keywords

Hrčak ID:

196577

URI

https://hrcak.srce.hr/196577

Publication date:

16.2.1976.

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