“…It has been suggested that aryl-imido ligands provide more crystalline solids [26]. Consequently, we decided to extend our research on Si-Cl functionalized monocyclopentadienyl niobium complexes [11,27,28] to isolate new aryl-imido derivatives using the organomagnesium compounds [Mg(NAr)-(THF)] 6 (Ar = 2,6-Me 2 C 6 H 3 , 1a; Ph, 1b) as imido transfer reagents. This method was first published by Power and co-workers [29] to obtain titanium and zirconium imido compounds.…”