arsoranes

The mononuclear hydrideAsH₅, systematically named $λ 5$ -arsane, and its hydrocarbyl derivatives. By extension the term also applies to arsonium ylides.

See: ylides, arsanes

Source:

PAC, 1995, 67, 1307 (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1320