Electronic Absorption Spectra of Inorganic and Organic Compounds of Nitrogen. II. Butyl and Amyl Nitrites

Abstract

The ultraviolet absorption spectra of «-butyl nitrite, ¿-butyl nitrite, n-amyl nitrite and isoamyl nitrite in the 2100 to 4000 A. region have been determined in the gas state and in the following solvents: cyclohexane, isooctane, carbon tetrachloride, chlorobenzene, diethyl ether, di-isopropyl ether, p-dioxane, ethyl acetate, acetone, a number of alcohols and water. The peak positions for «-alkyl and isoalkyl nitrites in the 3000-4000 Á. band systems are almost completely independent of solvent. The peak positions for ¿-alkyl nitrites appear to show a blue shift with increasing dielectric constant of the solvent. The usual solvent effects are complicated by a possible shift in the trans-cis ratio in «-alkyl and isoalkyl nitrites. The short wave length maxima between 2050 and 2250 A. show a blue shift with increasing dielectric constant of the solvent, which may be associated with an allowed nx type electronic transition.

NMR Stability Assay for Amyl Nitrite Ampuls

“…EXPERIMENTAL Amyl nitrite is a highly volatile vasodilator which is used as an inhalant. No direct spectroscopic method of analysis has been reported for this compound, although its IR (lo), UV (11,12), and 30-MHz. N F XI11 specified a nitrometric procedure in the past (8) but recently described a GC method (9).…”