Other compounds

Compounds with sulfur are explained in Topic F8. Except its fluorides, nitrogen halides are thermodynamically unstable and extremely explosive. The trifluoride NF₃ can be prepared through direct reaction of NH₃ and F₂. It is kinetically nontoxic and inert. Additional fluorination provides the NV species NF₄⁺

The oxofluoride ONF₃ is also well-known. Such as NF₄⁺ it is isoelectronic with NO₄^3-and must be explained by a similar valence structure (3). N₂F₄ is interesting in that such as N₂O₄ it eagerly dissociates into NF₂ radicals. Double-bonded N₂F₂ presents in cis (4) and trans (5) forms, the previous being thermodynamically more stable. The point groups are C_2v (4) and C_2h (5).

Nitrogen reacts straight with some electropositive metals to create nitrides like Li₃N and Ca₃N₂. Even though these can be prepared with nitride ion N^3- the bonding might be partially covalent. Other compounds with metals are imides and amides (consisting of NH₂^-and NH^2-, correspondingly) and azides consisting of N₃^- . Metal azides are thermodynamically unstable and frequently explosive.