Molecular spectra and molecular structure of heterocyclic compounds. Infrared and near ultraviolet absorption spectra of pyridine N-oxide derivatives was written by Ghersetti, Sergio;Maccagnani, Gaetano;Mangini, Angelo;Montanari, F.. And the article was included in Journal of Heterocyclic Chemistry in 1969.Formula: C7H9NO This article mentions the following:
The IR and UV spectra of many pyridine N-oxide derivatives (I) have been studied. The UV spectra show a strong solvent effect in going from aprotic to hydroxylic solvents due to strong H bonding. Values of ΔH° for several systems MeOH-I in tetrachloroethylene solution were evaluated by IR techniques and a linear correlation ΔH° vs.Δ MeOH was found. Features of the IR and UV characteristic absorption bands were also investigated. In the experiment, the researchers used many compounds, for example, 3,5-Dimethylpyridine 1-oxide (cas: 3718-65-8Formula: C7H9NO).
3,5-Dimethylpyridine 1-oxide (cas: 3718-65-8) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Formula: C7H9NO