M. Nagamine et al., JAHN-TELLER DEFORMATION IN POTASSIUM CLUSTERS AND ITS MANIFESTATION IN ELECTRON-TRANSFER FROM HIGH-RYDBERG KR ATOMS, Chemical physics letters, 229(1-2), 1994, pp. 8-12
Potassium cluster anions produced from potassium clusters in collision
with high-Rydberg Kr atoms were observed by mass spectrometry, and th
e relative cross-sections for collisional electron transfer were estim
ated. Even-odd magnitude alternation appearing in the cross-section ve
rsus cluster size-distribution was interpreted by Jahn-Teller distorti
on of the cluster anions in the framework of the shell model. The magn
itude of the alternation was found to depend on the electron affinity
of the parent neutral cluster and the number of bath modes related to
the stabilization of the cluster anion formed.