Communication: Vibrational spectroscopy of Au4 from high resolution photoelectron imaging.


High resolution photoelectron spectroscopy of Au4 (-) is reported using a new photoelectron imaging apparatus. A broad vibrational progression is resolved for the detachment transition from the ground electronic state of the Y-shaped Au4 (-) to that of the Y-shaped Au4 neutral (C2v, (1)A1) in the ν2 vibrational mode with a harmonic frequency of 171(7) cm(-1… (More)
DOI: 10.1063/1.4813503

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