Neptunium - ₉₃Np: compounds information

This section lists some binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and some other compounds of neptunium. For each compound, a formal oxidation number for neptunium is given, but the usefulness of this number is limited for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.

In compounds of neptunium (where known), the most common oxidation numbers of neptunium are: 5.

Hydrides

The term hydride is used to indicate compounds of the type M_xH_y and not necessarily to indicate that any compounds listed behave as hydrides chemically.

• none listed

Fluorides

• Neptunium trifluoride: NpF₃
• Neptunium hexafluoride: NpF₆
• Neptunium tetrafluoride: NpF₄
• Neptunium pentafluoride: NpF₅

Chlorides

• Neptunium trichloride: NpCl₃
• Neptunium tetrachloride: NpCl₄

Bromides

• Neptunium tetrabromide: NpBr₄

Iodides

• Neptunium triiodide: NpI₃

Oxides

• Neptunium oxide: NpO
• Neptunium dioxide: NpO₂
• Dineptunium pentaoxide: Np₂O₅

Sulfides

• Dineptunium trisulphide: Np₂S₃

Selenides

• none listed

Tellurides

• none listed

Nitrides

• Neptunium nitride: NpN

Carbonyls

• none listed

Complexes

• none listed