
TY  - JOUR
A1  - Peel, JB 
A1  - Vonnagyfelsobuki, EI 
T1  - The Photoelectron Spectra the Chloro Toluenes
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1987
VL  - 40
IS  - 4
SP  - 751
EP  - 759
KW  - 
UR  - https://doi.org/10.1071/CH9870751 
N2  - The HeI and HeII photoelectron spectra of the chloro  toluenes have been measured. The spectra are assigned using HeI/HeII cross-section ratios and a composite-molecule model within an ab initio  valence-electron-only model potential (VEOMP) framework. The order of the first two ionization potentials for the chloro  toluenes is assigned as &#960;S < &#960;A which is contrary to the VEOMP assignment for benzal chloride and benzotrichloride , but is consistent with linear correlations using group electronegativities and &#963;I scales. Furthermore, linear correlations using the first two ionization potentials of fluoro and chloro  toluenes with group electronegativities are shown to be a useful aid in spectral assignment and, moreover, suggest that for benzyl fluoride and benzal chloride the most appropriate &#963;I values are 0.20 and 0.31 respectively. 
ER  -

