High Resolution Fourier Transform Spectroscopy of the First Overtone of the N-O Stretch in Nitrosyl Bromide.

Abstract

Infrared Fourier transform spectroscopy of the first overtone of the nitric oxide (NO) bond stretch in nitrosyl bromide (ONBr) has been performed at a resolution of 0.02/cm-1 to obtain the rotational parameters of the V sub 1 = 2 energy level. Roughly 1000 transitions have been observed for rotational levels up to J = 80 and K sub a = 7. The calculation of the complete set of rotational energy levels of this asymmetric molecule requires the numerical diagonalization of four, tridiagonal matricies for each J. From a non-linear least squares fit of observed transitions with J < or = to 40 using an approximation for the energy levels, the maximum J value accurately approximated was determined to be twenty-four. The fit was reaccomplished for J < or = to 24. The Monte Carlo analysis suggests the need to use higher J levels to determine the distortion constants.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1994
Accession Number
ADA289318

Entities

People

  • Todd E. Wiest

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Angular Momentum
  • Chemical Reactions
  • Computer Programs
  • Distortion
  • Electromagnetic Spectra
  • Energy Levels
  • Energy Transfer
  • Equations
  • High Resolution
  • Michelson Interferometers
  • Molecules
  • Operating Systems
  • Optical Materials
  • Quantum Numbers
  • Scattering
  • Spectra
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Image Processing and Computer Vision.
  • Statistical inference.