Critical Evaluation of the Oscillator Strengths of NH2 and the Heats of Formation of NH and NH2
Abstract
The NH and NH2 radicals are expected to be of importance in the combustion chemistry of double base and nitramine propellants. It is therefore worthwhile to have spectroscopic probes for these radicals both for the flames which simulate the propellant combustion zone and for the propellant itself. However, the database for NH2 spectroscopy lacks absolute values for the absorption oscillator strengths of NH2. A method has recently been presented for the calculated oscillator strengths with the few measurements which exist is made. Promising agreement is found with reliable measurements. Further experiments are recommended to test the technique since there is presently scant data of sufficient quality to test the calculational method. During the course of these comparisons, it was found that results of the measurements depend heavily on the values chosen for the heats of formation of NH and NH2. Since these quantities have long been the subject of considerable debate, a critical literature survey was performed. Keywords: NH, NH2, Oscillator strengths, Heats of formation, Amines.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1988
- Accession Number
- ADA197565
Entities
People
- William R. Anderson
Organizations
- Ballistic Research Laboratory