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The nitrite ion has the chemical formula NO − 2. Nitrite (mostly sodium nitrite) is widely used throughout chemical and pharmaceutical industries. [1] The nitrite anion is a pervasive intermediate in the nitrogen cycle in nature. The name nitrite also refers to organic compounds having the –ONO group, which are esters of nitrous acid.
In the so-called Ter Meer reaction (1876) named after Edmund ter Meer, [14] the reactant is a 1,1-halonitroalkane: The reaction mechanism is proposed in which in the first slow step a proton is abstracted from nitroalkane 1 to a carbanion 2 followed by protonation to an aci-nitro 3 and finally nucleophilic displacement of chlorine based on an ...
The copper-containing enzyme nitrite reductase (CuNIR) catalyzes the 1-electron reduction of nitrite to nitric oxide. The proposed mechanism entails the protonation of a κ 2O,O -NO 2 -Cu(I) complex. This protonation induces cleavage of an N–O bond, giving a HO–Cu–ON center, which features a nitric oxide ligand O-bonded to Cu(II) (an ...
The nitrate ion is one such example with three equivalent structures. The bond between the nitrogen and each oxygen is a double bond in one structure and a single bond in the other two, so that the average bond order for each N–O interaction is 2 + 1 + 1 / 3 = 4 / 3 . [8]
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The additional one percentage point of GDP in spending amounts to about 1.3 trillion yuan ($179.4 billion). More stimulus will be funded through issuing off-budget special bonds, said the two ...
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Peroxynitrite can be prepared by the reaction of superoxide with nitric oxide: [1] [2] [3] NO + O − 2 → NO(O 2) −. It is prepared by the reaction of hydrogen peroxide with nitrite: [4] H 2 O 2 + NO − 2 → ONOO − + H 2 O. Its presence is indicated by the absorbance at 302 nm (pH 12, ε 302 = 1670 M −1 cm −1).
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