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Absolute electronegativity and hardness correlated with molecular orbital theory

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Pearson, Ralph G.·1986·Proceedings of the National Academy of Sciences

Abstract

The concepts of absolute electronegativity, χ, and absolute hardness, η, are incorporated into molecular orbital theory. A graphic and concise definition of hardness is given as twice the energy gap between the highest occupied molecular orbital and the lowest unoccupied molecular orbital. Useful correlations can now be made between chemical behavior, visible-UV absorption spectra, optical polarizability, ionization potentials, and electron affinities.

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Metadata

Authors
Pearson, R. G.
Venue
Proceedings of the National Academy of Sciences
Published
1986-11
Volume
83
Issue
22
Pages
8440-8441
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2043737771
Cited by
1,771
References
0
FWCI
1.41
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Absolute electronegativity and hardness correlated with molecular orbital theory. https://app.cochat.ai/papers/10.1073/pnas.83.22.8440
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Pearson, R. G. (1986). Absolute electronegativity and hardness correlated with molecular orbital theory. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.83.22.8440

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.