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Structures of three kinds of amides: an organic amide (carboxamide), a sulfonamide, and a phosphoramide. In chemistry, the term amide (/ ˈ æ m aɪ d / or / ˈ æ m ɪ d / or / ˈ eɪ m aɪ d /) [1] [2] [3] is a compound with the functional group R n E(=O) x NR 2, where x is not zero, E is some element, and each R represents an organic group or hydrogen. [4]
The core −C(=O)−(N) of amides is called the amide group (specifically, carboxamide group). In the usual nomenclature, one adds the term "amide" to the stem of the parent acid's name. For instance, the amide derived from acetic acid is named acetamide (CH 3 CONH 2). IUPAC recommends ethanamide, but this and related formal names are rarely ...
Metal amides (systematic name metal azanides) are a class of coordination compounds composed of a metal center with amide ligands of the form NR 2 −. Amido complexes of the parent amido ligand NH 2 − are rare compared to complexes with diorganylamido ligand, such as dimethylamido. Amide ligands have two electron pairs available for bonding.
Paris, Versailles Kingdom 843–1792 AD Frisia: Dorestad, Utrecht Tribal kingdom 600–734 AD Frisia (Upstalsboom League) Confederacy c. 1200–c. 1500 AD Flanders: Various Countship 862–1795 AD Frankish Empire: Tournai, Paris Kingdom/Empire 481–843 AD Holland: The Hague Countship 11th century–1795 AD Holy Roman Empire: No official Empire ...
Tabula Peutingeriana (section of a modern facsimile), top to bottom: Dalmatian coast, Adriatic Sea, southern Italy, Sicily, African Mediterranean coast. Tabula Peutingeriana (Latin for 'The Peutinger Map'), also referred to as Peutinger's Tabula, [1] Peutinger tables [2] or Peutinger Table, is an illustrated itinerarium (ancient Roman road map) showing the layout of the cursus publicus, the ...
The location of Paris was an important factor in its growth and strategic importance during the Middle Ages. Due to its position at the confluence of the Seine and the rivers Oise , Marne and Yerres , the city was abundantly supplied with food from the surrounding region, which was rich in grain fields and vineyards.
Lipoamide is a trivial name for 6,8-dithiooctanoic amide. It is the functional form of lipoic acid , i.e the carboxyl group is attached to protein via an amine with an amide linkage. [ 1 ] Illustrative of the biochemical role of lipoamide is in the conversion of pyruvate to acetyl lipoamide.
Azanide is the IUPAC-sanctioned name for the anion NH − 2. The term is obscure; derivatives of NH − 2 are almost invariably referred to as amides, [1] [2] [3] despite the fact that amide also refers to the organic functional group – C(=O)−NR 2. The anion NH − 2 is the conjugate base of ammonia, so it is formed by the self-ionization ...