internal valence force field (IVFF)

https://doi.org/10.1351/goldbook.I03111
A force field expressed in terms of bond-stretching, @A00346@-bending, torsional and other displacements directly connected to the structural parameters of the molecule: \[V=\frac{1}{2}\ \sum k_{ij}\ R_{i}\ R_{j}\] or \[V=\frac{1}{2}\ \sum K_{ij}\ R_{i}\ R_{j}\] where \(k\) (or \(K\)) are the @F02481@ and \(R\) the internal @V06588@ coordinates.
Source:
PAC, 1978, 50, 1707. (Definition and Symbolism of Molecular Force Constants) on page 1709 [Terms] [Paper]
Citation: 'internal valence force field' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.I03111 RIS BibTex EndNote
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Last revised: February 24, 2014