Laser-induced fluorescence of MnS: rotational analysis of the A6Σ+ – X6Σ+ transition

1985 ◽  
Vol 63 (11) ◽  
pp. 1380-1388 ◽  
Author(s):  
M. Douay ◽  
B. Pinchemel ◽  
C. Dufour
Keyword(s):  
Laser Excitation ◽  
Band System ◽  
Single Mode ◽  
Laser Induced Fluorescence ◽  
Spin Rotation ◽  
Spin Interaction ◽  
Rotational Analysis ◽  
Excitation Spectra ◽  
High Resolution Spectrometer ◽  
Resolution Spectrometer

Laser-excitation spectra of the rotational structure of the A6Σ+ – X6Σ+ transition of MnS has been performed. The combination of a single-mode dye laser and a high-resolution spectrometer have allowed analysis of a very congested spectrum in which the spin–rotation interaction completely dominates the spin–spin interaction. The (0,1) and (0,3) bands have been analyzed from laser-excitation spectra, and some information has been extracted from the emission spectrum of the (0,0) band. In addition, observation of a second band system confirms results already published by Monjazeb and Mohan.

scholarly journals Laser-Induced-Fluorescence Spectrum of the CNN Molecule

1988 ◽  
Vol 9 (4-6) ◽  
pp. 359-368 ◽  
Author(s):  
M. C. Curtis ◽  
A. P. Levick ◽  
P. J. Sarre
Keyword(s):  
Low Temperature ◽  
Gas Phase ◽  
Fluorescence Spectra ◽  
Laser Excitation ◽  
Band System ◽  
Laser Induced Fluorescence ◽  
Rotational Spectrum ◽  
Spin Orbit ◽  
Electronic Band ◽  
Temperature Matrix

We have recorded a laser excitation spectrum of the A3Π–X3Σ− electronic band system of the CNN radical in the gas phase, at a resolution of ca. 0.8 cm−1. The rotational branch structure of the vibrational band near 419 nm has been simulated and molecular parameters are obtained. The results are compared with data from laser-induced-fluorescence spectra of CNN trapped in a low-temperature matrix. A revised value for the spin-orbit parameter in the A3Π state is obtained and comparison is made with the values for related molecules. The possible detection of CNN in astrophysical sources is considered and the general features of its rotational spectrum in the ground electronic state are described.

Rotational analysis of the laser excitation spectra of the bromoacetylene and deuterobromoacetylene cations

1984 ◽  
Vol 62 (12) ◽  
pp. 1437-1451 ◽  
Author(s):  
Michael A. King ◽  
John P. Maier ◽  
Liubomir Misev ◽  
Martin Ochsner
Keyword(s):  
Electronic Structure ◽  
High Resolution ◽  
Laser Excitation ◽  
Neutral Molecule ◽  
Rotational Analysis ◽  
Excitation Spectra

High-resolution laser excitation spectra of the [Formula: see text] bands of the bromo- and deuterobromoacetylene cations have been recorded and rotationally analyzed. The new data are compared with those for the neutral molecule and discussed in terms of electronic structure.

The 2491 Å band system of NO2. Rotational structure and evidence for predissociation in the zero-point level

1976 ◽  
Vol 54 (11) ◽  
pp. 1157-1171 ◽  
Author(s):  
K. -E. J. Hallin ◽  
A. J. Merer
Keyword(s):  
Vibrational Level ◽  
Band System ◽  
Zero Point ◽  
Spin Rotation ◽  
Rotational Analysis ◽  
Coupling Constant ◽  
Centrifugal Distortion ◽  
Minimum Potential ◽  
Centrifugal Distortion Constants ◽  
Point Level

A detailed rotational analysis of the (0, 0) band of the [Formula: see text] electronic transition of NO2, at 2491 Å, has been carried out. Although the lines are slightly broadened as a result of predissociation, it has been possible to determine the five quartic centrifugal distortion constants and the spin–rotation coupling constant εaa for the upper state. The centrifugal distortion constants allow the position of the unseen vibrational level ν3′ to be estimated: the results offer no support to the suggestion of Coon, Cesani, and Huberman that there is a double minimum potential function in the antisymmetric stretching coordinate of the 2B2 state. The geometric structure of the zero-point level of the 2B2 state is r(N—O) = 1.3142 Å, [Formula: see text], and its lifetime (as calculated from the linewidths) is 42 ± 5 ps.

ROTATIONAL ANALYSIS OF THE β BANDS OF PHOSPHORUS MONOXIDE

1959 ◽  
Vol 37 (2) ◽  
pp. 136-143 ◽  
Author(s):  
Nand Lal Singh
Keyword(s):  
Ground State ◽  
Band System ◽  
Electronic States ◽  
Rotational Analysis ◽  
Rotational Constants ◽  
Fine Structures ◽  
Π State

The fine structures of three of the β bands of PO which occur near 3200 Å have been analyzed. The analysis shows that the upper state of this band system is a 2Σ and not a 2Π state as previously believed. The rotational constants of both electronic states have been determined and it is found that the ground state constants, previously determined from the γ bands, are incorrect.

Nuclear analysis of the DEMO divertor survey visible high-resolution spectrometer

2021 ◽  
Vol 169 ◽  
pp. 112460
Author(s):  
R. Luís ◽  
Y. Nietiadi ◽  
A. Silva ◽  
B. Gonçalves ◽  
T. Franke ◽  
...  
Keyword(s):  
High Resolution ◽  
Nuclear Analysis ◽  
High Resolution Spectrometer ◽  
Resolution Spectrometer

Laser-Induced Fluorescence Excitation Spectra oftert-Butoxy and 2-Butoxy Radicals

1999 ◽  
Vol 103 (41) ◽  
pp. 8207-8212 ◽  
Author(s):  
Chuji Wang ◽  
Liat G. Shemesh ◽  
Wei Deng ◽  
Michael D. Lilien ◽  
Theodore S. Dibble
Keyword(s):  
Laser Induced Fluorescence ◽  
Excitation Spectra ◽  
Fluorescence Excitation ◽  
Fluorescence Excitation Spectra
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