-
organic chemistry,
quinoids are a
class of
chemical compounds that are
derived from quinone.
Unlike benzenoid structures, the
quinoid part is not aromatic...
- photoluminescence.
Further reaction of the
quinoid dimer with
another triphenylmethyl radical produces a
quinoid radical that
exhibits red photoluminescence...
- 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...
- 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...
- and
Gazzolo reacted trinitroanisole with
sodium methoxide and
proposed a
quinoid structure for the
reaction product. In 1902
Jakob Meisenheimer observed...
-
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...
- 4'-viologens and
green for 2,2'-derivatives. The
second reduction yields a
yellow quinoid compounds: [V]+ + eā ā½ ā ā {\displaystyle {\ce {<=>>}}} [V]0 The electron...
-
counterexamples are cyclooctadecanonaene,
azulene and trans-bicalicene.
Quinoid Aromatic compound Tomlinson,
Muriel (1971). An
Introduction to the Chemistry...
- such as digoxin, warfarin, corticosteroids, and
diuretic agents.
Numerous quinoid phytochemicals are
present in
cascara bark. The
chemicals possibly contributing...
