• Source: Vanadium(II) fluoride

      • Vanadium(II) fluoride is a fluoride of vanadium, with the chemical formula of VF2. It forms blue crystals.


      Preparation


      Vanadium(II) fluoride can be produced by the reduction of vanadium trifluoride by hydrogen in a hydrogen fluoride atmosphere at 1150 °C:

      2 VF3 + H2 → 2 VF2 + 2 HF


      Properties




      = Physical properties

      =
      Vanadium(II) fluoride crystallizes in the tetragonal crystal system with space group P42/mnm (No. 136). Its lattice constants are a = 480.4 pm and c = 323.7 pm.


      = Reactions

      =
      Vanadium(II) fluoride is a strong reducing agent that can reduce nitrogen to hydrazine in the presence of magnesium hydroxide.
      It dissolves in water to form [V(H2O)6]2+ ions.

      V2+ + 6 H2O → [V(H2O)6]2+


      References

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