Search results
Results from the WOW.Com Content Network
The hydroxyl radical, Lewis structure shown, contains one unpaired electron. Lewis dot structure of a Hydroxide ion compared to a hydroxyl radical. In chemistry, a radical, also known as a free radical, is an atom, molecule, or ion that has at least one unpaired valence electron.
Hydroxyl radicals are highly reactive and consequently short-lived; however, they form an important part of radical chemistry. Most notably hydroxyl radicals are produced from the decomposition of hydroperoxides (ROOH) or, in atmospheric chemistry , by the reaction of excited atomic oxygen with water.
Pages in category "Free radicals" The following 82 pages are in this category, out of 82 total. ... Free radical; Radical (chemistry) * Disposable soma theory of aging;
In organic chemistry, alcohols and carboxylic acids contain one or more hydroxy groups. Both the negatively charged anion HO −, called hydroxide, and the neutral radical HO·, known as the hydroxyl radical, consist of an unbonded hydroxy group.
The hydroperoxyl radical, also known as the hydrogen superoxide, is the protonated form of superoxide with the chemical formula HO 2, also written HOO •. This species plays an important role in the atmosphere and as a reactive oxygen species in cell biology.
In chemistry, the amino radical, ·NH 2, also known as the aminyl or azanyl, is the neutral form of the amide ion (NH − 2). Aminyl radicals are highly reactive and consequently short-lived, like most radicals; however, they form an important part of nitrogen chemistry. In sufficiently high concentration, amino radicals dimerise to form hydrazine.
A free-radical reaction is any chemical reaction involving free radicals.This reaction type is abundant in organic reactions.Two pioneering studies into free radical reactions have been the discovery of the triphenylmethyl radical by Moses Gomberg (1900) and the lead-mirror experiment [1] described by Friedrich Paneth in 1927.
As an odd-electron species, CH is a radical. The ground state is a doublet (X 2 Π). The first two excited states are a quartet (with three unpaired electrons) (a 4 Σ −) and a doublet (A 2 Δ). The quartet lies at 71 kJ/mol above the ground state. [5] Reactions of the doublet radical with non-radical species involves insertion or addition ...