PHOTOELECTRON-SPECTROSCOPY OF GERMANIUM-FLUORINE BINARY CLUSTER ANIONS - THE HOMO-LUMO GAP ESTIMATION OF GE-N CLUSTERS

Authors
NEGISHI Y KAWAMATA H HAYASE T GOMEI M KISHI R HAYAKAWA F NAKAJIMA A KAYA K
Citation
Y. Negishi et al., PHOTOELECTRON-SPECTROSCOPY OF GERMANIUM-FLUORINE BINARY CLUSTER ANIONS - THE HOMO-LUMO GAP ESTIMATION OF GE-N CLUSTERS, Chemical physics letters, 269(3-4), 1997, pp. 199-207
Citations number
35
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
269
Issue
3-4
Year of publication
1997
Pages
199 - 207
Database
ISI
SICI code
0009-2614(1997)269:3-4<199:POGBCA>2.0.ZU;2-H
Abstract
Electronic properties of germanium-fluorine cluster anions (GenFm-; n = 1-11, m = 1-3) were studied using photo-electron spectroscopy (PES) with a magnetic-bottle type electron spectrometer. Compared between th e PES of GenF- and those of the Ge-n(-), it was found that the doped F atom in GenF- deprives each Ge-n(-) cluster of the excess electron wi thout any serious rearrangement of the Ge-n framework. The F doping me thod enables us to estimate the HOMO-LUMO gap of the corresponding neu tral Ge-n clusters (n = 4-11). For a diatomic GeF- cluster, furthermor e, the vibrational structures could be resolved to determine its vibra tional frequency.