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. 2001.

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  • 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 — The radical, (PR4)+. * * * phos·pho·ni·um fäs fō nē əm n a monovalent cation PH4+ analogous to ammonium and derived from phosphine also an organic derivative of phosphonium (as (C2H5)4P+) * * * phos·pho·ni·um (fos foґne əm) the univalent… …   Medical dictionary

  • phosphonium — fosfonis statusas T sritis chemija apibrėžtis Katijonas. formulė PH₄⁺ atitikmenys: angl. phosphonium rus. фосфоний ryšiai: sinonimas – fosfanis …   Chemijos terminų aiškinamasis žodynas

  • Phosphonium — Composés organophosphorés Les composés organophosphorés sont une classe de composés organiques comportant au moins un atome de phosphore. Ils sont d une importance capitale notamment en biochimie car un très grand nombre de composés d intérêt… …   Wikipédia en Français

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