Chapter 2. Polarization theory

Keyword(s):  
Daxue Huaxue ◽  
2020 ◽  
Vol 0 (0) ◽  
pp. 3-0
Author(s):  
Hongyan Wang ◽  
Kai Wang ◽  
Huan Jiao ◽  
Zhihong Liu

1969 ◽  
Vol 47 (20) ◽  
pp. 3902-3906 ◽  
Author(s):  
R. W. Frei ◽  
H. Zeitlin

Adsorption phenomena of a group of metal chelates of pyridine-2-aldehyde-2-quinolylhydrazone (PAQH) have been investigated. Formulas have been postulated for the chelates on the basis of ultraviolet and visible transmittance and reflectance spectra, ion exchange studies of charges, and chromatographic and temperature behavior. Shifts of spectra with varying adsorbents have been explained on the basis of the electronic polarization theory. Unusual behavior of the chelates has been observed on starch and cellulose and the existence of mixed ligand species due to interaction of adsorbents with the chelates has been suggested.


1968 ◽  
Vol 23 (12) ◽  
pp. 2080-2083 ◽  
Author(s):  
D. Hyatt ◽  
K. Lacmann

A Bendix time of flight mass spectrometer has been modified to enable the determination of some ion-molecule reaction cross sections in the energy range 1 — 100 eV.In the reactions studiedX+ + D2 → XD++Dwhere X may be Ar, N2 or CO, the results obtained agree with the predictions of the polarization theory in the range below 10 eV despite the fact that no intermediate complex is formed at these energies. Between about 10—50 eV where spectator stripping occurs the cross section follows an approximate E-l dependence. Above these energies the results are consistent with a transition to a region in which knock-on processes predominate and where an impulse approximation treatment would be valid.


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