Resonant two-photon ionization spectroscopy of jet-cooled Pt?

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Publication Type Journal Article
School or College College of Science
Department Chemistry
Creator Morse, Michael David
Other Author Taylor, Scott; Lemire, George W.; Hamrick, Yoon Mi; Fu, Zhenwen
Title Resonant two-photon ionization spectroscopy of jet-cooled Pt?
Date 1988
Description The gas phase optical spectrum of jet-cooled Pt? has been investigated over the range of 11 300 to 26 300 cm -1 using resonant two-photon ionization spectroscopy in combination with time-of-flight mass spectrometry. Numerous vibronic bands are observed. Analysis of the data gives the location of some 26 excited electronic states, which are characterized by the frequencies of their origin bands, vibrational frequencies, and anharmonicities. Variation of the second color in a two-color resonant two-photon ionization scheme has determined the ionization threshold of Pt? to be 8.68 ?0.02 eV. The observation of the onset of predissociation, characterized by a sharp drop in excited state lifetime, places the dissociation energy of Pt? at 3.14?0.02 eV. In combination with the Pt atomic ionization potential of 8.8?0.2 eV, these results give the bond strength of Pt?+ as D0(Pt--Pt+) = 3.26 ? 0.24 eV. The strength of the chemical bond in Pt?, as compared to Au?, demonstrates that there are significant 5d contributions to the chemical bonding in Pt?.
Type Text
Publisher American Institute of Physics (AIP)
Volume 89
Issue 9
First Page 5517
Last Page 5523
DOI 10.1063/1.455577
Language eng
Bibliographic Citation Taylor, S., Lemire, G. W., Hamrick, Y. M., Fu, Z., & Morse, M. D. (1988). Resonant two-photon ionization spectroscopy of jet-cooled Pt?. Journal of Chemical Physics, 89(9), 5517-23.
Rights Management ¬©American Institute of Physics. The following article appeared in Taylor, S., Lemire, G. W., Hamrick, Y. M., Fu, Z., & Morse, M. D. (1988). Resonant two-photon ionization spectroscopy of jet-cooled Pt?. Journal of Chemical Physics, 89(9), 5517-23. and may be found at http://dx.doi.org/10.1063/1.455577.
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Identifier ir-main,16970
ARK ark:/87278/s6280s0d
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2012-06-13
ID 705235
Reference URL https://collections.lib.utah.edu/ark:/87278/s6280s0d
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