 |
Ionization Energies of Liquids from Energy Distribution, Quantum Yield and Second Derivative Curves
Authors: K. P. Cheung; I. Watanabe; A. Dziedzic; K. von Burg; P. Delahay; NEW YORK UNIV NY DEPT OF CHEMISTRY |
|
Abstract:
The energies of the lowest ionization band of eight liquids of low vapor pressure are determined from energy distribution curves (EDC), quantum yield spectra (collected electrons per incident photon as a function of photon energy), and second derivative curves (SDC) of retarding potential curves. Threshold energies from EDC's and quantum yield spectra agree if one takes into account a 0.15 eV shift caused by the spectrometer's rather low resolution and a small difference (0.15 eV or less) resulting from the use of approximate extrapolation methods. Threshold energies from EDC's and SDC's agree to within 0.1 eV after correction for the half-width of the high-energy branch of SDC's. Multiple ionization bands are exhibited by the SDC's of some of the liquids, and the observed splittings agree well with the results from gas-phase UPS spectra. A new spectrometer for the measurement of EDC's of liquids is described. The liquids studied are 6-chloro-1-hexanol, 2-ethyl-1-hexanol, ethylene cyanohydrin, ethylene glycol, 1,5-pentanediol, tetraglyme, triethylene glycol, tetraethylene glycol. Originator supplied keywords include: Energy distribution curves, Ionization energies, Liquids, Photoelectron emission spectroscopy, Second derivative curves.
| Description: |
Technical rept. |
| Pages: |
27 |
| Report Date: |
MAR 85 |
| Contract Number: |
N00014-82-K-0113 |
| Report Number: |
A012251 |
Report Unavailable |
| This title is unavailable from Storming Media. We do not know when it might be available, if at all. We list the report on our site for bibliographic completeness, to help our users know what other work has been performed in this field. Please note that as with all titles on this site, we do not have contact information for any of the authors. Nor can we give any suggestions on how one might obtain this report. |
|
|
|
|
|
|
| |
|
|
Keywords relating to this report:
Email This Abstract
