Onium Compounds - Onium Cations With Monovalent Substitutions

Onium Cations With Monovalent Substitutions

  • primary ammonium cations, RH3N+ or RNH+
    3 (protonated primary amines)
    • hydroxylammonium, NH3OH+ (protonated hydroxylamine)
    • methylammonium, CH3NH+
      3 (protonated methylamine)
    • ethylammonium, C2H5NH+
      3 (protonated ethylamine)
    • hydrazinium, or diazanium, NH2NH+
      3 (protonated hydrazine, a.k.a. diazane)
  • secondary ammonium cations, R2NH+
    2 (protonated secondary amines)
    • dimethylammonium (sometimes dimethylaminium), (CH3)2NH+
      2 (protonated dimethylamine)
    • diethylammonium (sometimes diethylaminium), (C2H5)2NH+
      2 (protonated diethylamine)
    • ethylmethylammonium, C2H5CH3NH+
      2 (protonated ethylmethylamine)
    • diethanolammonium (sometimes diethanolaminium), (C2H4OH)2NH+
      2 (protonated diethanolamine)
  • tertiary ammonium cations, R3NH+ (protonated tertiary amines)
    • trimethylammonium (CH3)3NH+ (protonated trimethylamine)
    • triethylammonium (C2H5)3NH+ (protonated triethylamine)
  • quaternary ammonium cations, R4N+ or NR+
    4
    • tetramethylammonium, (CH3)4N+
    • tetraethylammonium, (C2H5)4N+
    • tetrapropylammonium, (C3H7)4N+
    • tetrabutylammonium, (C4H9)4N+ or abbreviated Bu4N+
    • trimethyl ammonium compounds, (CH3)3RN+
    • didecyldimethylammonium, (C10H21)2(CH3)2N+
    • pentamethylhydrazinium, N(CH3)2N(CH3)+
      3
  • quaternary phosphonium cations, R4P+ or PR+
    4
    • tetraphenylphosphonium, (C6H5)4P+
  • secondary sulfonium cations, R2SH+ (protonated sulfides)
    • dimethylsulfonium, (CH3)2SH+ (protonated dimethyl sulfide)
  • tertiary sulfonium cations, R3S+
    • trimethylsulfonium, (CH3)3S+
  • secondary fluoronium cations, R2F+
    • dichlorofluoronium, Cl2F+

Read more about this topic:  Onium Compounds