Investigation of Several Low-Lying Levels of X Doublet Pi State of NCO Using Argon Laser Excited Fluorescence.
Abstract
The laser excited fluorescence spectrum of NCO from an atmospheric pressure CH4/N2O/N2 flame is reinvestigated with a more sensitive apparatus than used previously. The NCO is pumped from the X doublet pi (1,O,O) level to the A doublet sigma plus (O,O,O) level. Emissions from the excited A state level to the following X state vibrational levels are observed: doublet pi (O,O,O), (1,0,0), and (O,O,1); doublet sigma plus (O,1,O). The previous tentative assignment of pumping transition as Q2(31) is confirmed. The confirmation of pumping transition solidifies our earlier interpretation that excited state spin relaxation in the flame is much faster than electronic quenching. In addition, analysis of the fluorescence spectra yields the first reported constants for the X doublet pi (1,O,O) level and spin splitting for the X doublet pi (O,O,1) level in the gas phase.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1984
- Accession Number
- ADA153693
Entities
People
- A. J. Kotlar
- J. A. Vanderhoff
- K. N. Wong
- W. R. Anderson
Organizations
- Ballistic Research Laboratory