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phos·pho·ni·um (fos-foґne-əm) the univalent radical PH4+, forming compounds analogous to those of ammonium.Medical dictionary. 2011.
phosphonium — ● phosphonium nom masculin Cation monovalent PH4+, existant dans les composés d addition de la phosphine avec les acides protoniques. Nom générique des cations organiques de formule générale PH+4 − n Rn résultant du remplacement d un ou de… … Encyclopédie Universelle
Phosphonium — Phos*pho ni*um, n. [Phosphorus + ammonium.] (Chem.) The hypothetical radical {PH4}, analogous to ammonium, and regarded as the nucleus of certain derivatives of phosphine. [1913 Webster] … The Collaborative International Dictionary of English
Phosphonĭum — PH4, dem Ammonium entsprechende Verbindung, s. Phosphine und Phosphorwasserstoff … Meyers Großes Konversations-Lexikon
phosphonium — [fäs fō′nē əm] n. [ModL: see PHOSPH(O) & ONIUM] the monovalent radical PH4, which is related to PH3 as the ammonium radical NH4 is related to NH3 … English World dictionary
Phosphonium — Als Phosphonium bezeichnet man das zum Ammonium Ion analoge Molekülion, bei dem das Stickstoffatom durch ein Phosphoratom ersetzt wurde. Anolog zum Ammonium Ion ist das Phosphonium Kation einfach positiv geladen, das Phosphoratom liegt in der… … Deutsch Wikipedia
Phosphonium — In chemistry, the phosphonium cation is a positively charged polyatomic ion with the chemical formula PH4+, resulting from protonation of phosphine. It has a molar mass of 35.01 g/mol.Salts containing four alkyl or aryl groups attached to a… … Wikipedia
phosphonium — fäˈsfōnēəm noun ( s) Etymology: New Latin, from phosph + onium : a univalent ion PH4+ or radical PH4 analogous to ammonium that is derived from phosphine and is known especially in the form of salts (as phosphonium iodide PH4I) and organic… … Useful english dictionary
phosphonium — noun Etymology: New Latin Date: 1871 a monovalent cation PH4+ analogous to ammonium and derived from phosphine; also an organic derivative of phosphonium (as (C2H5)4P+) … New Collegiate Dictionary
phosphonium — fosfonis statusas T sritis chemija apibrėžtis Katijonas. formulė PH₄⁺ atitikmenys: angl. phosphonium rus. фосфоний ryšiai: sinonimas – fosfanis … Chemijos terminų aiškinamasis žodynas
Phosphonium salt — A phosphonium salt is a salt containing the phosphonium (PH4+) ion such as phosphonium iodide (PH4+I−). More commonly, phosphonium refer to an organic derivative such as tetraphenylphosphonium chloride, (C6H5)4P+ Cl and tetramethylphosphonium… … Wikipedia
