Oxycation

In chemistry, an oxycation is a polyatomic ion with a positive charge that contains oxygen.

Examples

 * Dioxygenyl ion,
 * Nitrosonium ion,
 * Nitronium ion,
 * Vanadyl ion, VO2+, a very stable oxycation
 * Uranyl ion,, all natural U6+ occurs in this form
 * Zirconyl ion, as a tetramer of [Zr(OH)2]2+

See category for a bigger list.