The NHC alane and gallane adducts (NHC)•AlH 2 I (NHC = Me 2 Im Me 7, iPr 2 Im 8, iPr 2 Im Me 9) and (NHC)•GaH 2 I (NHC = Me 2 Im Me 10, iPr 2 Im Me 11, Dipp 2 Im 12; R 2 Im = 1,3-diorganyl-imidazolin-2-ylidene; Dipp = 2,6-diisopropylphenyl; iPr = isopropyl; Me 2 Im Me = 1,3,4,5-tetra-methyl-imidazolin-2-ylidene) were prepared either by the simple yet efficient reaction of the NHC adduct (NHC)•AlH 3 with elemental iodine or by the treatment of (NHC)•GaH 3 with an excess of methyl iodide at room temperature. The reaction of one equivalent of the group [a] A

Steric and electronic effects play a very important role in chemistry, as these effects influence the shape and reactivity of molecules. Herein, an easy-to-perform approach to assess and quantify steric...

The N-Heterocyclic Carbene (NHC) alane and gallane adducts (NHC)∙Cp*AlH2 (NHC = Me2ImMe 5, iPr2ImMe 6, Dipp2Im 7) and (NHC)∙Cp*GaH2 (NHC = Me2ImMe 8, iPr2ImMe 9, Dipp2Im 10; R2Im = 1,3‐di-organyl-imidazolin-2-ylidene;...