单词 | semiquinoid |
释义 | > as lemmassemiˈquinoid semiˈquinoid adj. (also semi'quinonoid) having or being a structure resembling that of a semiquinone; also absol. as n. ΚΠ 1932 Jrnl. Biol. Chem. 96 704 Let us designate the three forms of the substance as R (the reduced form), S (the semiquinoid or intermediary form), and T (the totally oxidized, or quinoid, or holoquinoid form). 1935 Chem. Rev. 16 265 Among the three constituents of a two-step system it is not always the semiquinoid that exhibits the greatest instability. 1964 J. W. Linnett Electronic Struct. Molecules vii. 110 The two members are such that the transfer of one electron from one of the molecules to the other (e.g. from diamine to chloranil) will produce two semiquinonoid-type radicals. < as lemmas |
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