Title: atom-bond polarizability
Long Title: IUPAC Gold Book - atom-bond polarizability
DOI: 10.1351/goldbook.AT06993
Status: current

Definition
A quantity used in perturbation HMO theory as a measure of the change in electron density, \(q\), of atom \(m\) caused by a change in the resonance integral, \(\beta \), of bond \(rs\): \[\pi _{\rm{m,rs}}=\frac{\partial q_{\rm{m}}}{\partial \beta _{\rm{rs}}}\]

Related Terms
- electron density: https://goldbook.iupac.org//terms/view/E01986
- resonance integral: https://goldbook.iupac.org//terms/view/R05337

Source
- PAC, 1999, 71, 1919. 'Glossary of terms used in theoretical organic chemistry' on page 1924 (https://doi.org/10.1351/pac199971101919)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/AT06993/html
- json: https://goldbook.iupac.org/terms/view/AT06993/json
- xml: https://goldbook.iupac.org/terms/view/AT06993/xml

Citation: Citation: 'atom-bond polarizability' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.AT06993
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Accessed: 2025-10-29T06:11:33+00:00