Resonant two-photon ionization spectroscopy of coinage metal trimers: Cu?Ag, Cu?Au, and CuAgAu

Update item information
Publication Type Journal Article
School or College College of Science
Department Chemistry
Creator Morse, Michael David
Other Author Bishea, Gregory A.; Arrington, Caleb A.; Behm, Jane M.
Title Resonant two-photon ionization spectroscopy of coinage metal trimers: Cu?Ag, Cu?Au, and CuAgAu
Date 1991
Description The jet-cooled coinage metal triatomic molecules Cu, Ag, Cu, Au, and CuAgAu have been investigated using resonant two-photon ionization spectroscopy. One band system, labeled as the ?-x system, has been observed for each species, with origin bands at 13 188, 17 217, and 17 470 cm -?, respectively. Vibrational progressions have been assigned and vibrational constants have been extracted using a linear least-squares fitting procedure. For Cu, Ag, 47 vibrational bands have been assigned within the ?-X system. The upper states of these bands derive from combinations of two symmetric (a,) and one antisymmetric (b,) mode in the C?v point group. For the ?-2 system of Cu?Au, only seven vibrational bands have been observed, all occurring within a 500 cm-? range. Lifetime measurements for the observed vibrational levels support the possibility that predissociation may be occurring in the ? excited state of Cu?Au and this may be limiting the number of vibrational levels observed within this state. Finally, in the case of CuAgAu, 92 vibrational bands have been assigned, corresponding to excitations of three totally symmetric (a?) vibrational modes in the Cg point group. For this molecule, a complete set-of vibrational frequencies (?i ) and anharmonicities (xy) have been obtained for the excited ? state. In addition, the observation of weak hot bands in the spectrum permits the three vibrational modes of the X ground state to be characterized by v? = 222.83 ? 0.29, v? = 153.27 ? 0.22, and v? = 103.90 ? 0.28 cm-? for 63Cu?07Ag?97Au (la error limits).
Type Text
Publisher American Institute of Physics (AIP)
Volume 95
Issue 12
First Page 8765
Last Page 8778
DOI 10.1063/1.461212
Language eng
Bibliographic Citation Bishea, G. A., Arrington, C. A., Behm, J. M., & Morse, M. D. (1991). Resonant two-photon ionization spectroscopy of coinage metal trimers: Cu?Ag, Cu?Au, and CuAgAu. Journal of Chemical Physics, 95(12), 8765-78.
Rights Management ¬©American Institute of Physics. The following article appeared in Bishea, G. A., Arrington, C. A., Behm, J. M., & Morse, M. D. (1991). Resonant two-photon ionization spectroscopy of coinage metal trimers: Cu?Ag, Cu?Au, and CuAgAu. Journal of Chemical Physics, 95(12), 8765-78. and may be found at http://dx.doi.org/10.1063/1.461212.
Format Medium application/pdf
Format Extent 1,725,975 bytes
Identifier ir-main,16983
ARK ark:/87278/s6xk906v
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2013-03-07
ID 707356
Reference URL https://collections.lib.utah.edu/ark:/87278/s6xk906v
Back to Search Results