Neptunium(V) fluoride
Neptunium(V) fluoride or neptunium pentafluoride is a chemical compound of neptunium and fluorine with the formula NpF5.
| Names | |
|---|---|
| IUPAC name
Neptunium(V) fluoride | |
| Other names
Neptunium pentafluoride | |
| Identifiers | |
3D model (JSmol) |
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CompTox Dashboard (EPA) |
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| Properties | |
| NpF5 | |
| Molar mass | 332 g/mol |
| Appearance | Bluish-white solid |
| Melting point | 318 °C (dec.) |
| Structure | |
| Tetragonal, tI12 | |
| I4/m, No. 87 | |
a = 0.65358 nm, c = 0.44562 nm | |
Lattice volume (V) |
0.1904 nm3 |
Formula units (Z) |
2 |
| Thermochemistry | |
Heat capacity (C) |
133 ± 8 J/mol·K |
Std molar entropy (S⦵298) |
200 ± 15 J/mol·K |
Std enthalpy of formation (ΔfH⦵298) |
−1941 ± 25 kJ/mol |
Gibbs free energy (ΔfG⦵) |
-1834 ± 25 kJ/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
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