Measurement of the pressure-broadening coefficient of NO by saturation spectroscopy of LMR

2000 ◽  
Vol 78 (11) ◽  
pp. 989-995 ◽  
Author(s):  
Y Liu ◽  
J Lin ◽  
Y Guo

This paper presents a method for the determination of the pressure-broadening coefficient of 15N16O by 14N16O. The hyperfine-structure-resolved spectral lines of NO were obtained with an intracavity laser magnetic resonance spectrometer via Lamb dips. From the spectra, the self-broadening coefficient of the P2(5/2) transition of the 15N16O fundamental band due to its collision with 14N16O at 293 K is determined to be 0.092(7) cm–1/atm. PACS No.: 32.40

1988 ◽  
Vol 5 (6) ◽  
pp. 277-280 ◽  
Author(s):  
Chen Yangqin ◽  
Liu Yuyan ◽  
Li Fengyan ◽  
Li Jinrui ◽  
He Kuanglin

1991 ◽  
Vol 183 (5) ◽  
pp. 340-344 ◽  
Author(s):  
Zhu-an Liu ◽  
Yu-yan Liu ◽  
Feng-yan Li ◽  
Jin-rui Li ◽  
Kuang-lin He ◽  
...  

1991 ◽  
Vol 148 (2) ◽  
pp. 462-478 ◽  
Author(s):  
Thomas Nelis ◽  
Stuart P. Beaton ◽  
Kenneth M. Evenson ◽  
John M. Brown

1967 ◽  
Vol 45 (3) ◽  
pp. 213-219 ◽  
Author(s):  
Gurudata ◽  
R. E. Klinck ◽  
J. B. Stothers

The temperature dependence of the formyl proton shieldings of 9-anthraldehyde and 9-phenanthraldehyde in chloroform solutions has been measured. Four concentrations in the range 0.5–5.0 mole % were examined over the temperature interval − 60 to + 90 °C. From these results, the enthalpies and entropies of formation have been estimated for the complex formed by the self-association of two aldehyde molecules. The calculations indicate the ΔH and ΔS values to be − 1.9 ± 0.3 kcal/mole and − 6 ± 1 e.u., respectively. These results are compared with other available data.


2000 ◽  
Vol 14 (11) ◽  
pp. 401-407 ◽  
Author(s):  
JIE-LI LIN ◽  
YU-YAN LIU ◽  
HONG-PING LIU ◽  
YUAN-QING QUO ◽  
XIAO-YONG LIU ◽  
...  

For absorption lines, the distortion of spectral lines by experimental spectrometers must be considered in measuring linewidth which has been investigated by many authors. While in the derivative spectrum, we managed to give the corrections of instrumental broadening and distortion to obtain accurate linewidths. We developed a universal fitting program which was explored together with the method of correction in the fundamental band spectra of LMR of NO. The uncorrected halfwidths were compared with the corrected values, which were obtained from the program. The results of comparison are very satisfactory and demonstrate their useful application to analyze experimental spectra.


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