A Dimeric Gallium Hydrazide as an Active Lewis Pair – Complexation and Activation of Me₂GaH and Various Heterocumulenes

Treatment of the dimeric gallium hydrazide [Me 2 Ga‐N(2‐Ad)‐NC 5 H 10 ] 2 ( 5 ) with Me 2 GaH resulted in the formation of an adduct 6 by Ga–N bond cleavage and coordination of the metal hydride via a Ga–N and a 3c–2e Ga–H–Ga bond. This reaction reflects the typical behavior of frustrated Lewis pairs. Reactions with heterocumulenes R –N=C= X ( R = Ph, CMe 3 , Dipp, X = O; R = Ph, X = S) or X =C= X ( X = O, S) resulted in the formation of the...