Term: field effect
https://doi.org/10.1351/goldbook.F02358

Definition:
An experimentally observable effect symbolized by F (on reaction rates, etc.) of intramolecular coulombic interaction between the centre of interest and a remote unipole or dipole, by direct action through space rather than through bonds. The magnitude of the field effect (or 'direct effect') depends on the unipolar charge/dipole moment, orientation of dipole, shortest distance between the centre of interest and the remote unipole or dipole, and on the effective dielectric constant.

Related Terms:
1) electronic effect (http://doi.org/10.1351/goldbook.E01996).
2) inductive effect (http://doi.org/10.1351/goldbook.I03021).
3) intramolecular (http://doi.org/10.1351/goldbook.I03130).
4) dielectric constant (http://doi.org/10.1351/goldbook.D01697).
5) dipole moment (http://doi.org/10.1351/goldbook.D01761).

Source: PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1115 (https://doi.org/10.1351/pac199466051077)

Citation: 'field effect' 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.F02358

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