Definition of Quinoid. Meaning of Quinoid. Synonyms of Quinoid

Here you will find one or more explanations in English for the word Quinoid. Also in the bottom left of the page several parts of wikipedia pages related to the word Quinoid and, of course, Quinoid synonyms and on the right images related to the word Quinoid.

Definition of Quinoid

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Quinoidine
Quinoidine Qui*noid"ine, n. [Quinine + -oid.] (Med. (Chem.) A brownish resinous substance obtained as a by-product in the treatment of cinchona bark. It consists of a mixture of several alkaloids. [Written also chinoidine.]

Meaning of Quinoid from wikipedia

- organic chemistry, quinoids are a class of chemical compounds that are derived from quinone. Unlike benzenoid structures, the quinoid part is not aromatic...
- dication. Structure 2a is a (singlet) diradical and 2b is the closed s**** quinoid. The experimental bond lengths for the central vinylidene group in 2 are...
- photoluminescence. Further reaction of the quinoid dimer with another triphenylmethyl radical produces a quinoid radical that exhibits red photoluminescence...
- by absorbing light in the visible region (some examples are nitro, azo, quinoid groups) and an auxochrome which serves to deepen the color. This theory...
- 1972). "Dihydropteridine reductase. Investigation of the specificity for quinoid dihydropteridine and the inhibition by 2,4-diaminopteridines". European...
- counterexamples are cyclooctadecanonaene, azulene and trans-bicalicene. Quinoid Aromatic compound Tomlinson, Muriel (1971). An Introduction to the Chemistry...
- and Gazzolo reacted trinitroanisole with sodium methoxide and proposed a quinoid structure for the reaction product. In 1902 Jakob Meisenheimer observed...
- 4'-viologens and green for 2,2'-derivatives. The second reduction yields a yellow quinoid compounds: [V]+ + e− ↽ − ⇀ {\displaystyle {\ce {<=>>}}} [V]0 The electron...
- which was prepared by Moses Gomberg in his quest for hexaphenylethane. Its quinoid structure has been determined by X-ray crystallography. The C-C bond that...
- PMID 17349800. Brunmark A, Cadenas E (1989). "Redox and addition chemistry of quinoid compounds and its biological implications". Free Radical Biology & Medicine...