Pentazine Explained

Pentazine is a hypothetical chemical compound that consists of a six-membered aromatic ring containing five nitrogen atoms with the molecular formula CHN₅. The name pentazine is used in the nomenclature of derivatives of this compound.

Pentazine is predicted to be unstable and to decompose into hydrogen cyanide (HCN) and nitrogen (N₂).^[1] The activation energy required is predicted to be around 20 kJ/mol.^[2]

See also

• 6-membered rings with one nitrogen atom: pyridine
• 6-membered rings with two nitrogen atoms: diazines
• 6-membered rings with three nitrogen atoms: triazines
• 6-membered rings with four nitrogen atoms: tetrazines
• 6-membered rings with six nitrogen atoms: hexazine

Notes and References

1. Book: 10.1016/B978-008096518-5.00138-6 . Other Tetrazines and Pentazines . Comprehensive Heterocyclic Chemistry II . 957–965 . 1996 . Hurst . Derek T. . 9780080965185 .
2. J. Fabian and E. Lewars . 2004 . Azabenzenes (azines) — The nitrogen derivatives of benzene with one to six N atoms: Stability, homodesmotic stabilization energy, electron distribution, and magnetic ring current; a computational study . . 82 . 1 . 50–69 . 10.1139/v03-178 . dead . https://web.archive.org/web/20050329185413/http://pubs.nrc-cnrc.gc.ca/rp/rppdf/v03-178.pdf . 2005-03-29.