Author/Authors :
Yeretzian، نويسنده , , Chahan and Hermann، نويسنده , , Robert H. and Ungar، نويسنده , , Horst and Selzle، نويسنده , , Heinrich L. and Schlag، نويسنده , , Edward W. and Lin، نويسنده , , Sheng H. Lin، نويسنده ,
Abstract :
Recently we reported on vibrationally resolved spectra of the ionic ground state of Ag2+ via ZEKE spectroscopy. The vibronic intensity distributions could not be interpreted within the Franck-Condon scheme. Here, we show that it is possible to overcome this discrepancy by invoking the breakdown of the Born-Oppenheimer approximation in the ZEKE states of silver dimer. A comparison of the spectral structure of the direct ion signal with simultaneously recorded ZEKE band profiles further illustrates this non-Franck-Condon behavior.
