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Author Moran, T. F. ♦ Friedman, L.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CHEMISTRY ♦ ATOMS ♦ DECOMPOSITION ♦ ELECTROSTATICS ♦ ENERGY ♦ EQUATIONS ♦ HYDRIDES ♦ INTERATOMIC DISTANCES ♦ IONS ♦ LATTICES ♦ MASS SPECTROMETERS ♦ MOLECULES ♦ NUMERICALS ♦ PARTICLE MODELS ♦ QUANTITATIVE ANALYSIS ♦ RARE GASES ♦ STABILITY
Abstract The Platt electrostatic model for calculating equilibrium internuclear distances and force constants of diatomic hydride molecules was used to calculate properties of diatomic hydride ions. An empirical approach to the scaling technique was employed in order to render the model consistent with the quantum mechanical virial theorem. This has the additional advantage of improving the calculated equilibrium properties. For twelve known hydride ions there is satisfactory agreement between calculated and experimentally measured force constants and equilibrium internuclear distances. The applicability of the relation Kr/sub e//D/sub o/ = const. to a sequence of similar diatomic ions was briefly examined. Calculated values of K and r, were used in the above relation to estimate dissociation energies of the rare-gas hydride ions. Results are compared with experimental limits determined from mass spectrographic investigations. Equilibrium properties of the corresponding neutral species calculated by the Platt electrostatic model are consistent with the generally assumed instability of the rare gas hydride molecules. (auth)
ISSN 00219606
Educational Use Research
Learning Resource Type Article
Publisher Date 1964-02-01
Publisher Department Brookhaven National Lab., Upton, N.Y.
Publisher Place United States
Journal Journal of Chemical Physics
Volume Number 40
Technical Publication No. BNL-7428
Organization Brookhaven National Lab., Upton, N.Y.


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