Damian R. Aris, James Barker, Paul R. Phillips, Nathaniel W. Alcock and Malcolm G. H. Wallbridge
Reaction of trimethylgallium with trifluoroacetamidine [H2NC(CF3)NH] resulted in an unusual elimination reaction, and yielded the air-stable volatile metallacycle [GaMe2{HNC(CF3)NC(CF3)NH}] which shows a planar six-membered (GaNCNCN) ring; a related aluminium system [AlMe2{HNC(Ph)NC(Ph)NH}] was formed using benzamidine [H2NC(Ph)NH].