- A
dianion is an
anion with a net
charge of −2.
While there exist many
stable molecular dianions, such as BeF4 2− and MgF4 2−, thus far no
stable atomic...
- In
organic chemistry, a
diethynylbenzene dianion is an
anion consisting of two
ethynyl anions as
substituents on a
benzene ring. With the
chemical formula...
- name: ethanedioate) is an
anion with the
chemical formula C2O2−4. This
dianion is colorless. It
occurs naturally,
including in some foods. It
forms a...
- nonaromatic. The
cyclopropenyl cation (C 3H+ 3) and the
triboracyclopropenyl dianion (B 3H2– 3) are
considered examples of a two π
electron system,
which are...
-
Cyclooctatetraene is
reduced by
elemental pot****ium to the
dianion. The
resulting dianion is a 10-pi
electron system,
which conforms to the
Huckel rule...
- phase: Ortho-diethynylbenzene
dianion (C6H4(C2)2)2− (the
strongest superbase ever synthesized) Meta-diethynylbenzene
dianion (C6H4(C2)2)2− (second strongest...
- the
reactivity of Fe2(μ-S2)(CO)6
proceeds through its sulfur-centered
dianion, [Fe2(μ-S)2(CO)2]2-. The
synthesis of Fe2(μ-S2)(CO)6 was
first reported...
- is blue. The
molar extinction coefficient for the blue
thymolphthalein dianion is 38,000 M−1 cm−1 at 595 nm.
Thymolphthalein is also
known to have use...
- deprotonation. The
endoperoxide dianion, however, can give the retro-Diels–Alder product: 1,2-dioxane-3,6-dione
dianion, and
after chemiexcitation by two...
-
species with a
formula of [C8H8]2− and
abbreviated as COT2−. It is the
dianion of cyclooctatetraene.
Salts of the
cyclooctatetraenide anion can be stable...
