Photoelectron Spectroscopy of the Water Dimer Reveals Unpredicted Vibrational Structure

Author(s):  
Sebastian Hartweg ◽  
Gustavo A. Garcia ◽  
Laurent Nahon

Distributions of calculated Franck-Condon factors for autoionizing transitions are used to illustrate the way in which the vibrational structure of the photoelectron spectrum may be extended in a characteristic manner when the wavelength of the exciting radiation coincides with a resonance in the photoionization cross section of a diatomic gas. The calculations are found to be in good agreement with resonance wavelength photoelectron spectra from O2.



Photoelectron spectra of isocyanic acid, isothiocyanic acid and hydrazoic acid excited by helium resonance radiation are presented. A complete identification of the orbitals from which electrons are ejected has been obtained by comparison with the photoelectron spectra of carbon dioxide, carbon oxysulphide and nitrous oxide, by consideration of the vibrational structure and intensities of the bands and by comparison with the photoelectron spectra of methyl isocyanate and methyl isothiocyanate. A clear relation is found between the photoelectron spectra and the bond angles in the neutral molecules.



1996 ◽  
Vol 104 (23) ◽  
pp. 9357-9361 ◽  
Author(s):  
Y. Morioka ◽  
Y. Lu ◽  
T. Matsui ◽  
T. Tanaka ◽  
H. Yoshii ◽  
...  


2014 ◽  
Vol 141 (22) ◽  
pp. 224309 ◽  
Author(s):  
Gary V. Lopez ◽  
Joseph Czekner ◽  
Tian Jian ◽  
Wei-Li Li ◽  
Zheng Yang ◽  
...  


1999 ◽  
Vol 110 (12) ◽  
pp. 5806-5813 ◽  
Author(s):  
S. Sundin ◽  
L. J. Saethre ◽  
S. L. Sorensen ◽  
A. Ausmees ◽  
S. Svensson


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