semiquinones

https://doi.org/10.1351/goldbook.S05600
Radical anions having the structure $\ce{O^{−}–Z–O^{.}}$ where $\ce{Z}$ is an ortho- or para-arylene group or analogous heteroarylene group; they are formally generated by the addition of an electron to a quinone.
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1365 [Terms] [Paper]
Citation: 'semiquinones' 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.S05600 RIS BibTex EndNote
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