Radical anions having the structure
OāāZāO.
where 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