title: The nature of the chemical bond in BeO0,-, BeOBe+,0,-, and in their hydrogenated products HBeO0,-, BeOH, HBeOH, BeOBeH+,0,-, and HBeOBeH.
abstract: The nature of the chemical bond in BeO0,-, BeOBe+,0,-, and in their hydrogenated products HBeO0,-, BeOH, HBeOH, BeOBeH+,0,-, and HBeOBeH has been studied through single and multi reference correlation methods. In all these species, excited and ionized atomic states participate in a resonant way making chemically possible molecules that have been termed hypervalent and explain also the "incompatible" geometrical structure of some species.
authors.affiliation: Department of Chemistry, Laboratory of Physical Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 157 71, Greece.
authors.forename: Apostolos
authors.identifier: 0000000210220029
authors.initials: A
authors.lastname: Kalemos