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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 ...
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 .
Any salt containing the ion, such as ammonium cyanate, is called a cyanate. The cyanate ion is an isomer of the much-less-stable fulminate anion, CNO − or [C − ≡N + −O −]. [1] The cyanate ion is an ambidentate ligand, forming complexes with a metal ion in which either the nitrogen or oxygen atom may be the electron-pair donor.
Thiocyanate can bind metals at either sulfur or nitrogen — it is an ambidentate ligand. Other factors, e.g. kinetics and solubility, sometimes influence the observed isomer. For example, [Co(NH 3) 5 (NCS)] 2+ is the thermodynamic isomer, but [Co(NH 3) 5 (SCN)] 2+ forms as the kinetic product of the reaction of thiocyanate salts with [Co(NH 3 ...
Breadcrumbs, also known as breading, consist of crumbled bread of varying dryness, sometimes with seasonings added, used for breading or crumbing foods, topping casseroles, stuffing poultry, thickening stews, adding inexpensive bulk to soups, meatloaves and similar foods, and making a crisp and crunchy covering for fried foods, especially breaded cutlets like tonkatsu and schnitzel.
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 ...
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.
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+.