Ab initio structures and stabilities of doubly charged diatomic metal helides for the first row transition metals

Title: Ab initio structures and stabilities of doubly charged diatomic metal helides for the first row transition metals
Creator: Wilson, David J. D.; Marsden, Colin J.; von Nagy-Felsobuki, Ellak I.
Relation: Journal of Physical Chemistry A Vol. 106, Issue 32, p. 7348-7354
Publisher Link: http://dx.doi.org/10.1021/jp0203503
Publisher: American Chemical Society
Resource Type: journal article
Date: 2002
Description: The electronic structure and molecular properties of doubly charged transition metal helides, HeX²⁺ (where X = Sc−Cu), have been investigated using the all-electron ROHF−UCCSD(T) method. Basis sets have been developed for the first row transition metals to elucidate trends in bonding, dissociation energies, and vibrational frequencies. The ground state for all the doubly charged helides exhibited a 3dⁿ configuration. In addition, states with configurations that have holes in the metal 3dσ orbital exhibited greater binding energies. Relativistic effects have also been investigated using the Cowan-Griffin ansatz. Anharmonic vibrational frequencies have been determined variationally.
Subject: ab initio structures; diatomic metal helides; first row transition metals; Cowan-Griffin ansatz; ROHF−UCCSD(T) method
Identifier: http://hdl.handle.net/1959.13/33288
Identifier: uon:3181
Identifier: ISSN:1089-5639
Language: eng
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