Neptunium hexafluoride

Neptunium(VI) fluoride

Names
IUPAC name Neptunium(VI) fluoride
Identifiers
CAS Number	14521-05-2 Y
3D model (JSmol)	Interactive image
PubChem CID	19695135
InChI InChI=1S/6FH.Np/h6*1H;/q;;;;;;+6/p-6 N
SMILES F[Np](F)(F)(F)(F)F
Properties
Chemical formula	F6Np
Molar mass	350.99 g·mol−1
Appearance	orange crystals
Melting point	54.4 °C (129.9 °F; 327.5 K)
Boiling point	55.18 °C (131.32 °F; 328.33 K)
Structure
Crystal structure	Orthorhombic, oP28
Space group	Pnma, No. 62
Coordination geometry	octahedral (Oh)
Dipole moment	0 D
Related compounds
Related fluoroNeptuniums	Neptunium trifluoride Neptunium tetrafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N (what is YN ?)
Infobox references

Neptunium tetrafluoride

Neptunium hexafluoride (NpF₆) is the highest fluoride of neptunium. It is an orange volatile crystalline solid. It is relatively hard to handle, being very corrosive and radioactive. It is prepared by fluorination of neptunium(IV) fluoride (NpF₄) by powerful fluorinating agents such as elemental fluorine.

It can also be obtained by fluorination of neptunium(III) fluoride.