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NO dissociation through ns, np, and nf Rydberg states: angular distributions
J Chen1, B R Strangfeld1, P L Houston1
1School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
The Journal of Chemical Physics
|February 12, 2015
Summary
This study investigates nitrogen monoxide (NO) predissociation dynamics using velocity-mapped imaging and theory. The findings validate a modified theoretical model for predicting photodissociation rates and product angular distributions.
Area of Science:
- Chemical Physics
- Molecular Spectroscopy
- Quantum Chemistry
Background:
- Nitrogen monoxide (NO) predissociation is crucial for understanding molecular dynamics.
- Rydberg states of NO provide insights into electronic structure and dissociation pathways.
Purpose of the Study:
- To investigate the angular distribution of NO predissociation products.
- To study NO Rydberg states (11s, 10p, 11p, 9f) based on the NO(+) core.
- To compare experimental results with theoretical calculations.
Main Methods:
- Velocity-mapped imaging to determine product velocity and angular distributions.
- Theoretical calculations based on a modified approach including Hund's case (d) coupling.
- Ion dip spectroscopy to identify Rydberg states.
Main Results:
- Experimental angular distributions were compared with theoretical predictions.
- Good agreement between experimental data and modified theoretical calculations was achieved.
- The theory successfully explained previous results and variations in photodissociation rates.
Conclusions:
- The modified theoretical approach demonstrates predictive value for NO predissociation.
- The study enhances understanding of photodissociation mechanisms in NO Rydberg states.
- Experimental and theoretical methods combined provide a comprehensive view of molecular predissociation.
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