In organic chemistry, a radical anion is a free radical species that carries a negative charge. Radical anions are encountered in organic chemistry as...

conditions, the intensely blue radical anion S−3 is abundant. The anion is sometimes called thiozonide, by analogy with the ozonide anion, O−3, to which it is valence...

a net negative charge of −1. Both dioxygen and the superoxide anion are free radicals that exhibit paramagnetism. Superoxide was historically also known...

suitable hydrogen donor to form a ketyl radical. Alkali metals reduce benzophenone to the deeply blue colored radical anion, diphenylketyl: M + Ph2CO → M+Ph2CO•−...

an anion radical that contains a group R2C−O•. It is the product of the 1-electron reduction of a ketone. Another mesomeric structure has the radical position...

requires that the rate-limiting step be the conversion of radical anion B to the cyclohexadienyl radical C. That step also determines the structure of the product...

red, respectively. These radical anions substitute for the chloride anions within the sodalite structure. The S•− 3 radical anion exhibits a visible absorption...

intermediate collapses into an aryl radical 3 and a halide anion. The aryl radical reacts with the nucleophile 4 to a new radical anion 5 which goes on to form the...

forms: methanide anion (CH−3), methylium cation (CH+3) or methyl radical (CH• 3). The anion has eight valence electrons, the radical seven and the cation...

ion with fewer electrons than protons (e.g. K+ (potassium ion)) while an anion is a negatively charged ion with more electrons than protons. (e.g. Cl−...

and radical anions are combined in the ion trap an electron is transferred to the multiply-charged cation. This forms an unstable positive radical cation...

is the polyatomic hydrogen sulfate anion (HSO−4). The removal of another hydrogen ion produces the sulfate anion (SO2−4). There are several patterns...

reduced organic compounds are unstable. Stability is conferred to the radical anion when the charge can be delocalized. Examples include alkali metal naphthenides...

to become a radical anion, and a monomer molecule will give up an electron at the anode to form a radical cation (Figure 6). The radical ions then initiate...

Furthermore, Vedeja proposed a mechanism involving the formation of radical anion and zinc carbenoid, followed by reduction to alkane (as shown above)...

1-methylnaphthalene and cetane. With alkali metals, 1-methylnaphthalene forms radical anion salts such as sodium 1-methylnaphthalene. Compared to its structural...

accessing radical anions is through the use of reducing agents. In 2014 the Wang group reported the synthesis of a phosphorus-centred radical anion through...

that radicals are stronger oxidants than OH. In order to test this, sulfate and phosphate radical anions were used. The sulfate and phosphate radical anions...

While the first studies of boryl radicals involved borane radical anions, the study of overall neutral boryl radical species was unlocked through the...

tetrasulfide: 4 Na + S8 → 2 Na2S4 Some of these dianions dissociate to give radical anions, such as S3− gives the blue color of the rock lapis lazuli. This reaction...

naphthalene crystallizes with ligands bound to Li+. The anion is a well-known example of an organic radical. The compound is prepared by stirring the metallic...

in aerobic organisms, thus turning into a highly reactive radical anion. After the radical loses the electron to its target, it recycles back to the unactivated...

singly reduced CO2●− radical anion to the surface) and carbon monoxide (in case of adsorption of singly reduced CO2●− radical anion to the surface) in aqueous...

intestine. Ascorbate readily donates a hydrogen atom to free radicals, forming the radical anion semidehydroascorbate (also known as monodehydroascorbate)...

tetrahydrofuran or dimethoxyethane. The resulting salt is dark green. The anion is a radical, giving a strong EPR signal near g = 2.0. Its deep green color arises...

polymer science, Szwarc elucidated that electron transfer occurred from radical anion sodium naphthalene to styrene. The results in the formation of an organosodium...

showed that electron transfer occurred from radical anion of naphthalene to styrene. The initial radical anion of styrene converts to a dianion (or equivalently...

primarily to the need for an arene radical anion that is stable enough not to react directly with enamine or enamine radical cation. In the proposed mechanism...

into ammonia and borane is more favorable than homolysis into radical cation and radical anion. However, aside from clear-cut examples, there is considerable...

derivatives of azulene. Radical cations, like radical anions, have one unpaired electron, i.e. they are paramagnetic. Radical cations appear prominently...