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In chemistry, linkage isomerism or ambidentate isomerism is a form of structural isomerism in which certain coordination compounds have the same composition but differ in which atom of the ligand is bonded to the metal. Typical ligands that give rise to linkage isomers are: cyanide, CN − – isocyanide, NC −; cyanate, OCN − – isocyanate ...
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 ...
An example of chelating nitrite is [Cu(bipy) 2 (O 2 N)]NO 3 – "bipy" is the bidentate ligand 2,2′-bipyridyl. This bonding mode is sometimes described as κ 2O,O-NO 2.. The kinetically-favored O-bonded isomer [(NH 3) 5 Co−ONO] 2+ converts to [(NH 3) 5 Co−NO 2] 2+. In its reaction with ferric porphyrin complexes, nitrite gives the O ...
In coordination chemistry, denticity (from Latin dentis 'tooth') refers to the number of donor groups in a given ligand that bind to the central metal atom in a coordination complex. [ 1 ] [ 2 ] In many cases, only one atom in the ligand binds to the metal, so the denticity equals one, and the ligand is said to be unidentate or monodentate .
Many metals, metal halides, and metal carbonyls undergo similar reactions, but the product formulas can be deceptive. For example from chromium one obtains Cr(NO 3) 3 (N 2 O 4) 2, which was shown to be the salt (NO +) 2 [Cr(NO 3) 5] 2-. [15] Nitrogen oxides readily interconvert between various forms, some of which may act as completing ligands.
Nickel(II) nitrite is an inorganic compound with the chemical formula Ni(NO 2) 2. [1] Anhydrous nickel nitrite was first discovered in 1961 by Cyril Clifford Addison, who allowed gaseous nickel tetracarbonyl to react with dinitrogen tetroxide, yielding a green smoke.
Pentaamminenitritocobalt(III) chloride is an inorganic compound with the molecular formula [Co(NH 3) 5 (NO 2)]Cl 2. It is an orange solid that is soluble in water. The compound has been of academic interest as a source of the transition metal nitrite complex [Co(NH 3) 5 (NO 2)] 2+.
The structure of an organic nitro compound. In organic chemistry, nitro compounds are organic compounds that contain one or more nitro functional groups (−NO 2).The nitro group is one of the most common explosophores (functional group that makes a compound explosive) used globally.