Definition of diazonium salts

Compounds of structure RN2+ Y-, in which R is generally but not necessarily aryl, and the cations of which are usually formulated as RN+N. NOC Rule C-931. E.g. PhN+N Cl- benzenediazonium chloride. They may also be named, from the canonical form RN=N+, hydrocarbyldiazenylium salts. RNRI Rule RC-82.2.2.3.