Calculations of some weakly bound diatomic molecular negative ions
- Department of Physics, Kansas State University, Manhattan, Kansas 66506-2601 (United States)
We examine the existence of stable bound states of some diatomic molecular ions where the neutral molecule itself is either unbound or barely bound. Two bound states have been found for the HeH[sup [minus]] ion even though HeH is known to be unbound. We have found no bound states for He[sub 2][minus] even though [sup 4]He[sub 2] is known to have one bound state. The predicted binding energies for HeH[sup [minus]] are of the order of 1 K and depend sensitively on the isotope combinations. Other weakly bound negative ions such as NeH[sup [minus]] and ArH[sup [minus]] have also been investigated. These weakly bound molecular ions are good candidates for cold collision experiments. [copyright] [ital 1999] [ital The American Physical Society]
- OSTI ID:
- 6425127
- Journal Information:
- Physical Review A, Vol. 60:3; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANIONS
ARGON COMPOUNDS
ARGON HYDRIDES
BINDING ENERGY
BOUND STATE
DIATOMS
ELECTRONIC STRUCTURE
HELIUM COMPOUNDS
HELIUM HYDRIDES
MOLECULAR IONS
NEON COMPOUNDS
NEON HYDRIDES
ALGAE
CHARGED PARTICLES
CHROMOPHYCOTA
ENERGY
HYDRIDES
HYDROGEN COMPOUNDS
IONS
PLANTS
RARE GAS COMPOUNDS
664100* - Theory of Electronic Structure of Atoms & Molecules- (1992-)