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Integrated intensity of NO fundamental
U P Oppenheim1, Y Aviv, A Goldman
1U. P. Oppenheim is with the Department of Physics, Technion-Israel Institute of Technology, Haifa, Israel.
Researchers determined the integrated intensity of nitric oxide (NO) fundamental vibration bands. This study provides a key value for understanding NO gas properties and atmospheric chemistry.
Area of Science:
- Spectroscopy
- Atmospheric Chemistry
- Physical Chemistry
Background:
- The statistical band model is crucial for analyzing molecular vibration spectra.
- Nitric oxide (NO) plays a significant role in atmospheric processes.
- Accurate intensity measurements are vital for spectroscopic databases.
Purpose of the Study:
- To apply the statistical band model to the nitric oxide (NO) fundamental vibration band.
- To establish a validity criterion for the linear region of transmittance measurements.
- To determine the integrated intensity of the NO fundamental vibration band.
Main Methods:
- Utilized the statistical band model for spectral analysis.
- Performed transmittance measurements of NO gas mixed with helium.
- Focused measurements within the established linear region for validity.
Main Results:
- A criterion for the validity of the linear region in transmittance measurements was successfully established.
- The integrated intensity of the NO fundamental vibration band was determined to be 125 +/- 8 cm(-2) atm(-1) at 273 K.
- Experimental data aligned with the predictions of the statistical band model.
Conclusions:
- The statistical band model is applicable to the NO fundamental vibration band.
- The determined integrated intensity provides a reliable value for NO spectroscopy.
- This research contributes to the accurate characterization of NO spectral properties.
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