azoxy compounds

https://doi.org/10.1351/goldbook.A00567
$N$-Oxides of azo compounds of structure $\ce{RN=N^{+}(O^{−})R}$, e.g. $\ce{PhN=N^{+}(O^{−})Ph}$ azoxybenzene or diphenyldiazene oxide.
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1321 [Terms] [Paper]