overlap integral

symbol: $S_{\rm{rs}}$
https://doi.org/10.1351/goldbook.O04357
Integral over space of the type \(\int \psi _{\rm{r}}^{*}\ \psi _{\rm{s}}\ \rm{d}\tau \) where \(\psi_{\rm{r}}\) and \(\psi_{\rm{s}}\) are different wavefunctions.
Source:
Green Book, 2nd ed., p. 17 [Terms] [Book]
Citation: 'overlap integral' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.O04357 RIS BibTex EndNote
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