ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Electronic Spectra and Structure of 2,6-Dimethyl-3-halo-4-nitropyridine N-Oxides

H. Ban-Oganowska

Department of Organic Chemistry, University of Economics, PL-53 З42 Wroclaw

Abstract: The UV spectra of 2,6-dimethyl-3-halo(F, Cl, Br, I)-4-nitropyridine N-oxides in heptane have been examined and compared with the results (transition energies, intensities) of modified INDO calculations in order to make the assignment of some bands. The influence of substituents in the molecule on λ_max and ε_max is discussed. The dipole moments are calculated and compared with experimental values. The effect of steric hindrance on the spectra is interpreted.

Full paper in Portable Document Format: 531a69.pdf

Chemical Papers 53 (1) 69–74 (1999)