The complete UV spectrum of SO2by electron impact, 1, The vacuum ultraviolet Spectrum

1992 ◽  
Vol 97 (A7) ◽  
pp. 10473 ◽  
Author(s):  
Joseph M. Ajello ◽  
Geoffrey K. James ◽  
Isik Kanik ◽  
Brian O. Franklin
Keyword(s):  
Electron Impact ◽  
Vacuum Ultraviolet ◽  
Ultraviolet Spectrum ◽  
Uv Spectrum

The complete UV spectrum of SO2by electron impact, 2, The middle ultraviolet spectrum

1992 ◽  
Vol 97 (A7) ◽  
pp. 10501 ◽  
Author(s):  
Joseph M. Ajello ◽  
Geoffrey K. James ◽  
Isik Kanik
Keyword(s):  
Electron Impact ◽  
Ultraviolet Spectrum ◽  
Uv Spectrum

Ultraviolet Spectrum Analysis of 1-methyl-3-butyl imidazole Tetrafluoroborate in Ethanol

2013 ◽  
Vol 389 ◽  
pp. 3-6
Author(s):  
Yang Yang Song ◽  
Peng Tian ◽  
Lu Yu
Keyword(s):  
Ionic Liquid ◽  
Linear Regression ◽  
Wavelength Range ◽  
Solution Concentration ◽  
Ultraviolet Spectrum ◽  
Linear Regression Equation ◽  
Uv Spectrum ◽  
Spectrometry Method ◽  
Spectrum Curve ◽  
Maximum Absorption Wavelength

1-methyl-3-butyl Imidazole chloride is prepared by 1methyl imidazole and chlorinated n-butane. BMIBF4 ionic liquid is prepared by BMIC and NaBF4 in the acetone. Scanning ionic liquid in 200~400nm wavelength range, get UV-spectrum curve. The ionic liquid used in the experiment has obvious absorption in 200~400nm wavelength range, and the maximum absorption wavelength determined by ultraviolet spectrometry method is 222nm. Linear regression equation is y =0.02311x+0.02861. Correlation coefficient is 0.99925, indicating there is high related degree between the solution concentration and the absorbance value. The linear range of BMIBF4 ionic liquid in the ethanol is 1-75 mg/L. Take samples randomly and have a repeated determination 5 times, the precision is RSD=0.25%, the recovery rate is between 97.4%~102%.

Assignment of the vacuum-ultraviolet spectrum of ethylene sulphide

1993 ◽  
Vol 212 (6) ◽  
pp. 654-658 ◽  
Author(s):  
M. Carnell ◽  
S.D. Peyerimhoff
Keyword(s):  
Vacuum Ultraviolet ◽  
Ultraviolet Spectrum

Extensions to the spectrum of doubly excited Mg I in the vacuum ultraviolet

1978 ◽  
Vol 364 (1718) ◽  
pp. 353-366 ◽  
Keyword(s):  
Absorption Spectrum ◽  
Ab Initio ◽  
Electron Impact ◽  
Vacuum Ultraviolet ◽  
Background Radiation ◽  
Valence Shell ◽  
Electron Synchrotron ◽  
Doubly Excited ◽  
High Series ◽  
The Continuum

The absorption spectrum of Mg I vapour between 2000 and 700 ņ has been reinvestigated, using the continuum emitted by the Bonn 500 MeV electron synchrotron as the source of background radiation. Extensions to the double excitation spectrum of the valence shell have resulted and are compared with recent data obtained by electron impact spectroscopy. Ab initio calculations of the doubly excited configurations have been extended to high series members, and the transition from LS to jj coupling is shown to be responsible for the appearance of a 1 S 0 - 3 P 1 series not previously detected by photoabsorption.

scholarly journals The vacuum ultraviolet spectrum of cyclohepta-1, 3, 5-triene: Analysis of the singlet and triplet excited states by ab initio and density functional methods

2020 ◽  
Vol 153 (5) ◽  
pp. 054301
Author(s):  
Michael H. Palmer ◽  
Søren Vrønning Hoffmann ◽  
Nykola C. Jones ◽  
Marcello Coreno ◽  
Monica de Simone ◽  
...  
Keyword(s):  
Ab Initio ◽  
Excited States ◽  
Density Functional ◽  
Vacuum Ultraviolet ◽  
Ultraviolet Spectrum ◽  
Density Functional Methods ◽  
Functional Methods ◽  
Triplet Excited States

The vacuum ultraviolet spectrum of [Mn2(CO)10]

1992 ◽  
Vol 434 (2) ◽  
pp. 235-240 ◽  
Author(s):  
Antonio Márquez ◽  
Javier Fernández Sanz ◽  
Michel Gelizé ◽  
Alain Dargelos
Keyword(s):  
Vacuum Ultraviolet ◽  
Ultraviolet Spectrum

A Discussion on astronomy in the ultraviolet - A study of interstellar lines in the rocket spectrum of δ Scorpii

1975 ◽  
Vol 279 (1289) ◽  
pp. 317-322
Keyword(s):  
Ground State ◽  
Atomic Hydrogen ◽  
Vacuum Ultraviolet ◽  
Velocity Dispersion ◽  
Ultraviolet Spectrum ◽  
Ultraviolet A ◽  
Average Ratio ◽  
Solar Abundances ◽  
Fe Ions ◽  
Cloud Density

An analysis is made of ten interstellar lines in the vacuum ultraviolet spectrum of 8 Sco. The data were taken from a rocket spectrogram with wavelength coverage extending from 1177 to 1717 A with a resolution of approximately 0.15 A. Column densities of C°, C+, N°, 0°, A1+, Si+ and Fe+ are derived, from which abundances relative to atomic hydrogen are determined. Compared to corresponding solar abundances, silicon and iron are slightly overabundant whereas the remaining species are underabundant by factors of 1.8 to 8.6. It is shown that the relative Fe abundance may be made significantly less than the solar value by arbitrarily increasing the velocity dispersion of the Fe+ ions by a factor of 2. The relative populations of the carbon atoms ground state fine structure levels combined with two possible mean cloud temperatures of 47 and 76 K determined from the interstellar H 2 spectrum yield a mean cloud density of 250 and 150 cm-3 respectively. Using the appropriate column densities of neutral and singly ionized carbon atoms, the average ratio of the electron density at the hydrogen atom density for each temperature is found to be 2.1 x 10-4 and 4.8 x 10~2 *4 respectively.

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