Open AccessODD-EVEN AL TERNATION IN ALUMINUM ANION CLUSTERS: MASS ABUNDANCE SPECTRA OBSERVATION AND THE MECHANISMS
Author(s) -
Zhai Hua-Jin,
Guoquan Ni,
Zhou Ru-Fang,
Yuzhu Wang
Publication year - 1997
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.46.1674
Subject(s) - delocalized electron , alternation (linguistics) , ion , spectral line , valence electron , valence (chemistry) , mass spectrum , electron , atomic physics , physics , abundance (ecology) , aluminium , pairing , materials science , condensed matter physics , nuclear physics , philosophy , linguistics , quantum mechanics , metallurgy , superconductivity , astronomy , fishery , biology
A pronounced odd-even alternation for Aln clusters ranging from n=5 to n=17 has been observed in mass abundance spectra. The electron-pairing effect of the delocalized valence electrons determines intrinsically the alternation, while special source conditions enhance the alternation so dramaticaly that it is readily obseervable in mass abundance spectra. The ion group Al7O has also, for the first time as far as we know, been observed, and its geometric as well as electronic structure has been discussed.