L'ion pyridinium est l'acide conjugué de la pyridine. Il s'agit d'un cation ayant pour formule brute C5H5NH+. La charge positive est portée par l'atome d'azote. Le pKa du couple pyridinium / pyridine est de 5,23.
Portail de la chimieWikimedia Foundation. 2010.
Contenu soumis à la licence CC-BY-SA. Source : Article Pyridinium de Wikipédia en français (auteurs)
Pyridinium — refers to the cationic form of pyridine. This can either be due to protonation of the ring nitrogen or because of addition of a substituent to the ring nitrogen, typically via alkylation. The lone pair of electrons on the nitrogen atom of… … Wikipedia
pyridinium — noun a) The cationic form of pyridine. b) An individual pyridinium cation … Wiktionary
pyridinium — piridinis statusas T sritis chemija formulė Formulę žr. priede. priedas( ai) Grafinis formatas atitikmenys: angl. pyridinium rus. пиридиний … Chemijos terminų aiškinamasis žodynas
Pyridinium chlorochromate — Chembox new Name = Pyridinium chlorochromate ImageFile = Pyridinium chlorochromate.png ImageSize = 150px ImageName = Chemical structure of the Pyridinium Chlorochromate ImageFileL1 = Pyridinium 3D balls.png ImageNameR1 = Ball and stick model of… … Wikipedia
pyridinium chlorochromate — piridinio chlorchromatas statusas T sritis chemija formulė C₅H₅NClCrO₃H atitikmenys: angl. pyridinium chlorochromate rus. хлорхромат пиридиния … Chemijos terminų aiškinamasis žodynas
pyridinium — A breakdown product of bone collagen, excreted in urine, and assayed as a measure of osteoclast activity; increased in disease states such as Paget s disease, primary hyperparathyroidism, and osteoporosis … Medical dictionary
Pyridinium — Py|ri|di|ni|um, eigtl. Pyridin 1 ium [↑ Pyridin u. ↑ ium (2)], das; s: Bez. für das durch Anlagerung eines Protons an das Ring N Atom des Pyridins entstandene Kation C5H6N+; Pyridiniumchlorid z. B. ist eine ↑ Oniumverbindung. Vgl. Pyridylium … Universal-Lexikon
pyridinium — pyr·i·din·i·um … English syllables
pyridinium — ˌpirəˈdinēəm noun ( s) Etymology: New Latin, from International Scientific Vocabulary pyridine + New Latin ium : a univalent ion [C5H5NH]+ or radical C5H6N that is analogous to ammonium and is derived from pyridine … Useful english dictionary
Chlorochromate De Pyridinium — Général Nom IUPAC chlorochromate de pyridinium … Wikipédia en Français
