A study of the vibration–rotation and fine structure energy levels of the NSe radical by laser magnetic resonance

1987 ◽  
Vol 87 (2) ◽  
pp. 880-884 ◽  
Author(s):  
John M. Brown ◽  
Hiromichi Uehara
Keyword(s):  
Fine Structure ◽  
Magnetic Resonance ◽  
Energy Levels ◽  
Vibration Rotation ◽  
Laser Magnetic Resonance

Laser fluorescence and high vibrational levels of 15NO2

1979 ◽  
Vol 57 (6) ◽  
pp. 828-835 ◽  
Author(s):  
J. C. D. Brand ◽  
P.-H. Chiu ◽  
A. R. Hoy
Keyword(s):  
Magnetic Resonance ◽  
Ground State ◽  
Narrow Band ◽  
Laser Fluorescence ◽  
Resonance Fluorescence ◽  
Infrared Measurements ◽  
Vibrational Levels ◽  
Vibration Rotation ◽  
Laser Magnetic Resonance ◽  
Electronic Ground

Resonance fluorescence of 15NO2 excited by narrow-band radiation of an Ar+ laser at 514, 495, 488, and 476 nm is reported and analyzed. The data are combined with published laser magnetic resonance and infrared measurements to obtain a set of vibration and vibration–rotation constants for the electronic ground state of this isotope.The fluorescence bands reported are a-axis polarized, corresponding to a transition moment [Formula: see text] between 2B2 and 2A1 basis states. Numerous anomalies in the vibrational and rotational structure of the fluorescence indicate that, in the region of the manifold probed by the laser, vibrational levels of the parent 2B2 basis state mix extensively with one another as well as with high vibrational levels of the 2A1 ground state.

Laser Magnetic Resonance Spectra of 14NO2 and 15NO2 near 1600 cm−1

1975 ◽  
Vol 53 (19) ◽  
pp. 1929-1938 ◽  
Author(s):  
S. M. Freund ◽  
J. T. Hougen ◽  
W. J. Lafferty
Keyword(s):  
Magnetic Resonance ◽  
Spin Rotation ◽  
Zero Field ◽  
Co Laser ◽  
Wave Numbers ◽  
Vibration Rotation ◽  
Laser Magnetic Resonance ◽  
Stable Molecule ◽  
Transition Wave ◽  
Good Agreement

Two laser magnetic resonance patterns for 14NO2 and six patterns for 15NO2, observed using six CO laser transitions, have been analyzed to yield spin corrected zero-field vibration–rotation transition wave numbers and zero-field spin–rotation splittings. The 14NO2 results are in good agreement with results obtained from conventional infrared grating studies. The 15NO2 results allow new values of ν0 = 1582.107 ± 0.008, A′ − A″ = −0.2116 ± 0.0011, and DK′ − DK″ = −1.39 ± 0.20 × 10−4 cm−1 to be determined for the ν3 fundamental of that molecule (errors are 3 standard deviations). Two spectral figures and a list of assigned Zeeman lines are presented to permit using this stable molecule as an aid in adjusting newly constructed instruments. Closed form approximate intensity expressions are given for Zeeman transitions of the type observed in this work, i.e., for sharp partially spin forbidden Zeeman transitions in A type bands of near prolate asymmetric rotors.

The fine-structure intervals of (N-14)+ by far-infrared laser magnetic resonance

1994 ◽  
Vol 428 ◽  
pp. L37 ◽  
Author(s):  
John M. Brown ◽  
Thomas D. Varberg ◽  
Kenneth M. Evenson ◽  
Andrew L. Cooksy
Keyword(s):  
Fine Structure ◽  
Magnetic Resonance ◽  
Far Infrared ◽  
Infrared Laser ◽  
Far Infrared Laser ◽  
Laser Magnetic Resonance
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