Phosphoryl nitride
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Phosphoryl nitride in chemistry is a reactive intermediate with the structure OPN. It is a linear oxygen phosphorus nitrogen molecule with a formal double bond between P and O (phosphoryl) and a triple bond (nitride) between P and N. It can be obtained in argon matrix isolation at 16 K by laser photolysis of phosphoryl triazide, OP(N3)3. OPN and its isomer ONP can interconvert by photoisomerization. Both are valence isoelectronic to N2O.
Bulk phosphoryl nitride has many polymorphs, similar to its isoelectronic counterpart, silicon dioxide.