Kinetics and Spectroscopy of BrNO

Author

Patrick E. Godfrey

Date of Award

6-1997

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Department of Engineering Physics

First Advisor

Glen P. Perram, PhD

Abstract

The infrared spectra and photochemistry of nitrosyl bromide, BrNO, are important to characterizing the performance of a recently demonstrated Br(²P_1/2)-NO(v=2 → v=1) transfer laser pumped by photolysis of iodine molecules. This wavelength agile, mid-infrared laser may be a desirable source for remote sensing and infrared countermeasures missions. Nitrosyl bromide also plays a role in the destruction of stratospheric ozone. The kinetics of BrNO formation and destruction were examined using time-resolved photolysis techniques. The equilibrium constant for the dark reaction Br₂ + 2NO (reversible reaction) 2BrNO was determined as K_eq 168 ± 23 /atm and the rate constant for the forward reaction as k_f = 1.40 ± .18 x 10^-38 cm⁶ /molecule²-s at 293K. A novel technique for the fitting of the observed time profiles to the three-body kinetics was developed which utilizes the complete temporal profile to establish the rate coefficients.

AFIT Designator

AFIT-DS-ENP-97-06

DTIC Accession Number

ADA327228

Recommended Citation

Godfrey, Patrick E., "Kinetics and Spectroscopy of BrNO" (1997). Theses and Dissertations. 5827.
https://scholar.afit.edu/etd/5827