-
resulting anions,
hydrogencroconate C5HO−5 and
croconate C5O2−5 are also
quite stable. The
croconate ion, in particular, is
aromatic and symmetric, as...
-
Croconate blue or 1,2,3-tris(dicyanomethylene)
croconate is a
divalent anion with
chemical formula C 14N 6O2− 2 or ((N≡C−)2C=)3(C5O2)2−. It is one of the...
-
Croconate violet or 1,3-bis(dicyanomethylene)
croconate is a
divalent anion with
chemical formula C 11N 4O2− 3 or ((N≡C−)2C=)2(C5O3)2−. It is one of the...
- 2-(Dicyanomethylene)
croconate is a
divalent anion with
chemical formula C 8N 2O2− 4 or ((N≡C−)2C=)(C5O4)2−. It is one of the pseudo-oxocarbon anions,...
-
Fatiadi (1978),
Synthesis of 1,3-(dicyanomethylene)
croconate salts. New bond-delocalized dianion, "
Croconate Violet".
Journal of the
American Chemical Society...
- that the
aromatic character of the
squarate core is retained.
Croconate violet Croconate blue 1,2-Bis(dicyanomethylene)squarate
Vanessa E. de Oliveira...
-
Hsien Ying. (September 1963). "New
Aromatic Anions. VI.
Complexes of
Croconate Ion with Some
Divalent and
Trivalent Metals".
Journal of the American...
- (Eggerding and West, 1976), C4O42−,
squarate (Cohen and others, 1959), C5O52−,
croconate (Gmelin, 1825), and C6O62−,
rhodizonate (****er, 1837). The
cyclic oxide...
-
correspond to the even less
stable 1,2-dioxetanedione C2O4; and the
stable croconate anion C 5O2− 5
corresponds to the
neutral cyclopentanepentone C5O5, which...
-
Cyclopentanepentone can be
viewed as the
neutral counterpart of the
croconate anion C 5O2− 5. The
compound referred to in the
literature and
trade as...
