Compound: [NpF4O]

Owner Referee Record added Record modified CAS Registry MolBase ID MolBase status
Lauren Povey Mike Ward 23 Nov 2004 13:06 23 Nov 2004 13:20 [58348-94-0] 1222 Submitted

Neptunium (VI) fluoride oxide
Tetraflurooxoneptunium (VI)
Neptunium tetrafluoride oxide

Compound formula

Central atom Formula Structural formula Isomer label Charge Formula weight Specific rotation label Absolute rotation label
neptunium (Np) F4Np1O1 [NpF4O] 0 328.993

Classification for Np

This compound is regarded as a discrete molecular species.

Oxidation number MLXZ class Coordination number (CN) Donor set Total valence electron count VE configuration Magnetism Block
6 MX6 5 F4O1 13 f1 paramagnetic f

Contributed properties

Geometry about Np Point group Distortion type Physical state Colour Melting point
trigonal bipyramidal (5) C4v solid Brown not given


Isostructural with UOF4 (Uranium fluoride oxide)

Key references

  1. Dictionary of Inorganic Compounds ID: IC-018412

3D structure


Synthesis from NpF6 in nearly anhydrous HF.


No reactions yet entered.

Other calculated properties

Element percentages

    F     23.10%
   Np     72.04%
    O      4.86%

Isotope pattern

     329  100.00  __________________________________________________
     330    0.04  
     331    0.21