or undergo secondary reactions. In such oligomers, tri-coordinated gallium Lewis acid centers form bonds with either Lewis base ligands or substituents . It is a common strategy to use inert bulky substituents around the reactive sites of group-III elements to decrease their tendency to react with themselves . In this work, the same strategy is used to prevent the dimerization of gallium imides. Adding bulky peripheral substituents is not expected to affect the accessibility of the active gallium centers to small methane molecules.