Laser photodetachment spectra of C/sub 6/F/sub 6//sup -/ in nonpolar liquids

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Aromatic anions absorb in the visible region of the spectrum and energetic considerations suggest that in solution photodetachment may be an important process at these wavelengths. This study reports electron photodetachment cross sections for C/sub 6/F/sub 6//sup -/ for wavelengths between 415 and 700 nm. The anion is generated by electron attachment to solute C/sub 6/F/sub 6/ during an x-ray pulse. Detachment is observed as a change in conductivity induced by a subsequent light pulse from a tunable dye laser. The threshold values are reported for tetramethylsilane, n-butane, cyclopentane, n-pentane, 2,2,4-trimethylpentane, 2,2 dimethylbutane, and neopentane. The thresholds are consistent with ... continued below

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Pages: 29

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Sowada, U. & Holroyd, R.A. January 1, 1979.

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Aromatic anions absorb in the visible region of the spectrum and energetic considerations suggest that in solution photodetachment may be an important process at these wavelengths. This study reports electron photodetachment cross sections for C/sub 6/F/sub 6//sup -/ for wavelengths between 415 and 700 nm. The anion is generated by electron attachment to solute C/sub 6/F/sub 6/ during an x-ray pulse. Detachment is observed as a change in conductivity induced by a subsequent light pulse from a tunable dye laser. The threshold values are reported for tetramethylsilane, n-butane, cyclopentane, n-pentane, 2,2,4-trimethylpentane, 2,2 dimethylbutane, and neopentane. The thresholds are consistent with an electron affinity of 1.09 +- 0.04 eV for the C/sub 6/F/sub 6/ molecule. Comparison of the data to the absorption spectrum of C/sub 6/F/sub 6//sup -/ shows that for photon energies above threshold the major process is photodetachment. The relationship of photodetachment data to other properties of the excess electrons in these solvents are discussed.

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Pages: 29

Notes

Dep. NTIS, PC A03/MF A01.

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  • 5. international conference on excess electrons and metal-ammonia solutions, Iverness-Shire, UK, 25 Jun 1979

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  • Report No.: BNL-26111
  • Report No.: CONF-790662-1
  • Grant Number: EY-76-C-02-0016
  • Office of Scientific & Technical Information Report Number: 6036052
  • Archival Resource Key: ark:/67531/metadc1100523

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 1979

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  • Feb. 18, 2018, 3:59 p.m.

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  • April 23, 2018, 4:25 p.m.

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Sowada, U. & Holroyd, R.A. Laser photodetachment spectra of C/sub 6/F/sub 6//sup -/ in nonpolar liquids, article, January 1, 1979; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc1100523/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.