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Nitrite is an ambidentate ligand and can form a wide variety of coordination complexes by binding to metal ions in several ways. [2] Two examples are the red nitrito complex [Co(NH 3) 5 (ONO)] 2+ is metastable, isomerizing to the yellow nitro complex [Co(NH 3) 5 (NO 2)] 2+. Nitrite is processed by several enzymes, all of which utilize ...
Nucleophilic substitution reactions between halocarbons [5] or organosulfates [6] with silver or alkali nitrite salts. Nitromethane can be produced in the laboratory by treating sodium chloroacetate with sodium nitrite. [7] Oxidation of oximes [8] or primary amines. [9] Reduction of β-nitro alcohols [10] or nitroalkenes. [11]
Sodium nitrite acts as an antioxidant in a mechanism similar to the one responsible for the coloring effect. [19] Nitrite reacts with heme proteins and metal ions, neutralizing free radicals by nitric oxide (one of its byproducts). [19] Neutralization of these free radicals terminates the cycle of lipid oxidation that leads to rancidity. [19]
Transition metal nitrite complex. Sodium cobaltinitrite is a salt of the coordination complex [Co (NO2)6]3−. [1] In organometallic chemistry, transition metal complexes of nitrite describes families of coordination complexes containing one or more nitrite (−NO2) ligands. [2] Although the synthetic derivatives are only of scholarly interest ...
Nitrosation is typically performed with nitrous acid, formed from acidification of a sodium nitrite solution. Nitrous acid is unstable, and high yields require a rapid reaction rate; NO + synthon transfer is catalyzed by a strong nucleophile, such as (in increasing order of efficacy) chloride, bromide, thiocyanate, or thiourea.
Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N 2, a colorless and odorless diatomic gas.
Nitrous acid (molecular formula H N O. 2) is a weak and monoprotic acid known only in solution, in the gas phase, and in the form of nitrite (NO−. 2) salts. [3] It was discovered by Carl Wilhelm Scheele, who called it " phlogisticated acid of niter". Nitrous acid is used to make diazonium salts from amines.
Nitrification. Nitrification is the biological oxidation of ammonia to nitrate via the intermediary nitrite. Nitrification is an important step in the nitrogen cycle in soil. The process of complete nitrification may occur through separate organisms [1] or entirely within one organism, as in comammox bacteria.