Accession Number:

ADA327228

Title:

Kinetics and Spectroscopy of BrNO

Descriptive Note:

Final rept.

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1997-06-12

Pagination or Media Count:

333.0

Abstract:

The infrared spectra and photochemistry of nitrosyl bromide, BrNO, are important to characterizing the performance of a recently demonstrated Br2P12-NOv2-- v1 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 Ksub eq 168 or - 23 atm and the rate constant for the forward reaction as k sub f 1.40 or - .18 x 10exp -38 cm to the 6th powersq molecules 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.

Subject Categories:

  • Inorganic Chemistry
  • Radiation and Nuclear Chemistry
  • Lasers and Masers
  • Infrared Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE