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A model for stretch-bend interactions in molecular force fields

Mills, I. (1963) A model for stretch-bend interactions in molecular force fields. Spectrochimica Acta, 19 (9). pp. 1585-1594. ISSN 0371-1951

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To link to this article DOI: 10.1016/0371-1951(63)80017-X

Abstract/Summary

Interaction force constants between bond-stretching and angle-bending co-ordinates in polyatomic molecules have been attributed, by some authors, to changes of hybridization due to orbital-following of the bending co-ordinate, and consequent changes of bond length due to the change of hybridization. A method is described for using this model quantitatively to reduce the number of independent force constants in the potential function of a polyatomic molecule, by relating stretch-bend interaction constants to the corresponding diagonal stretching constants. It is proposed to call this model the Hybrid Orbital Force Field. The model is applied to the tetrahedral four co-ordinated carbon atom (as in methane) and to the trigonal planar three coordinated carbon atom (as in formaldehyde).

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:7334
Publisher:Elsevier

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