The addition of [2.2.2]cryptand to alkali metal heptaphosphides M3P7 (M = Na, K) leads to the formation of the salts [M([2.2.2]cryptand)][cyclo-P5]. Although the cyclo-P5− anion is spectroscopically ...

Reaction of the ionic liquid [NEt3Me][Cl3] with white phosphorus (P4) gives, quantitatively, hexachlorophosphate [NEt3Me][PCl6]. This compound shows similar reactivity as PCl5, as confirmed for the re...