-
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...
- and
Gazzolo reacted trinitroanisole with
sodium methoxide and
proposed a
quinoid structure for the
reaction product. In 1902
Jakob Meisenheimer observed...
- 1972). "Dihydropteridine reductase.
Investigation of the
specificity for
quinoid dihydropteridine and the
inhibition by 2,4-diaminopteridines". European...
-
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...
- QDPR (
quinoid dihydropteridine reductase) is a
human gene that
produces the
enzyme quinoid dihydropteridine reductase. This
enzyme is part of the pathway...
- 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...
- where, in a para
substituted arene 1a, one
resonance structure 1b is a
quinoid with
positive charge on the X substituent,
releasing electrons and thus...
- 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...
-
counterexamples are cyclooctadecanonaene,
azulene and trans-bicalicene.
Quinoid Aromatic compound Tomlinson,
Muriel (1971). An
Introduction to the Chemistry...
