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High-resolution spectroscopy of Ag+2 via long-lived ZEKE states

✍ Scribed by Géza I. Németh; Horst Ungar; Chahan Yeretzian; Heinrich L. Selzle; Edward W. Schlag

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 824 KB
Volume: 228
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)00904-x

No coin nor oath required. For personal study only.

✦ Synopsis

We report on mass-analyzed ZEKE spectra of Ag: via resonance-enhanced two-color excitation. To the best of our knowledge, this is the first metal dimer and at the same time the heaviest system (2 18 amu) ever investigated by mass-analyzed ZEKE. The adiabatic ionization potential, vibrational energies for v+ = 1,2,3 and 4 as well as the vibrational constants cc., CO&, of the ionic ground state X *Cl are determined with high accuracy. The surprising intensity pattern of vibrational progressions cannot be rationalized within a Franck-Condon picture and points to the unique properties of ZEKE states.

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