Mass spectrometry determination of vibrationally excited states of molecules of hydrogen desorbed from the surface of metal hydrides

1995 ◽  
Vol 20 (5) ◽  
pp. 357-360 ◽  
Author(s):  
Y Shmal'ko
Keyword(s):  
Mass Spectrometry ◽  
Excited States ◽  
Metal Hydrides ◽  
Vibrationally Excited

Determination of a High Potential Barrier Hindering Internal Rotation in 2-Methylcyclopentanone and α-Methyl-γ-Butyrolactone by Microwave Fourier Transform Spectroscopy

1992 ◽  
Vol 47 (6) ◽  
pp. 761-764 ◽  
Author(s):  
J. L. Alonso ◽  
N. Heineking ◽  
H. Dreizler ◽  
N. Heineking ◽  
H. Dreizler
Keyword(s):  
Fourier Transform ◽  
Internal Rotation ◽  
Excited States ◽  
Fourier Transform Spectroscopy ◽  
Vibrationally Excited ◽  
Methyl Group ◽  
Internal Rotation Barrier ◽  
High Potential Barrier ◽  
Method Analysis

AbstractThe microwave spectra of α-methyl-γ-butyrolactone and 2-methylcyclopentanone have been reinvestigated using microwave Fourier transform spectroscopy. A-E splittings due to internal rotation of the methyl group have been observed in the ground and several vibrationally excited states for both molecules. From an internal-axis-method analysis of these splittings, values of the methyl group internal rotation barrier of 2.61 kcal mol-1 for α-methyl-γ-butyrolactone and 2.41 kcal mol-1 for 2-methylcyclopentanone have been obtained.

Experimental Characterization of the Higher Vibrationally Excited States of HCO+: Determination of ω2, x22, g22, and B(030)

2000 ◽  
Vol 199 (2) ◽  
pp. 147-157 ◽  
Author(s):  
Robert J. Foltynowicz ◽  
Jason D. Robinson ◽  
Eric J. Zückerman ◽  
Hartmut G. Hedderich ◽  
Edward R. Grant
Keyword(s):  
Excited States ◽  
Experimental Characterization ◽  
Vibrationally Excited
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