Metastable He sub 2 sup minus ions formed by two-electron attachment to the excited He sub 2 sup +. Sigma. sub g sup + (1. sigma. sub g sup 2 2. sigma. sub g sup 1 ) core

Journal Article · Sun Sep 01 00:00:00 EDT 1991 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.44.2860· OSTI ID:5180228

Adamowicz, L ^[1]; Pluta, T ^[2]

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1. Department of Chemistry, University of Arizona, Tucson, Arizona (USA)
2. Department of Chemistry, Memphis State University, Memphis, Tennessee (USA)

Four metastable states (1 {sup 4}{Pi}{sub {ital u}}, 2 {sup 4}{Pi}{sub {ital u}}, {sup 4}{Phi}{sub {ital u}}, and {sup 4}{ital I}{sub {ital u}}), resulting from two-electron attachments to the excited He{sub 2}{sup +} core ({sup 2}{Sigma}{sub {ital g}}{sup +}), are characterized using the numerical Hartree-Fock method. It is determined that such metastable states are formed when both valence electrons are placed into equally diffused orbitals, which have bonding charter, and whose angular momentum quantum numbers do not differ by more than 1.

• OSTI ID: 5180228
• Journal Information: Physical Review A. General Physics; (United States), Vol. 44:5; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HELIUM IONS
ELECTRON ATTACHMENT
CHEMICAL BONDS
HARTREE-FOCK METHOD
INTERATOMIC FORCES
METASTABLE STATES
MOLECULAR IONS
MOLECULAR ORBITAL METHOD
NUMERICAL SOLUTION
QUANTUM NUMBERS
STABILITY
VALENCE
CHARGED PARTICLES
ENERGY LEVELS
EXCITED STATES
IONS
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory