State Resolved Chemistry of NF, PF, and N3
Abstract
Experimental methods were developed to study the chemical kinetics of NF(X3Sigma-), NF(a1Delta), and NF(b1Sigma+) molecules in a gas phase flow reactor. Since the F + NCO and F + N, reactions were used to produce the NF(X) and NF(a) molecules, respectively, experiments also were done to characterize N3 and NCO radicals by laser induced fluorescence. With the exception of the halogens, most stable molecules quench NF(b) by a physical, E - V quenching mechanism. In contrast, the NF(a) state seems to interact with most molecules by a chemical mechanism. Neither NF singlet state is highly reactive at room temperature, and NF(a) and NF(b) are good molecules for energy storage. The interaction of NF(a) with 2, ICI and IF resembles that for O2(a1Delta). The first step is rapid E - V transfer, which is followed by utilization of a second NF(a) molecule giving I atoms. The concentrations of NF(a) and NF(b) were monitored by their fluorescence intensities. The NF(X-) concentration was observed by the N2(A) + NF(X) excitation-transfer reaction.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 20, 1992
- Accession Number
- ADA251629
Entities
People
- Donald W. Setser
Organizations
- Kansas State University