It stands to reason that ligand skeletons similar in structure to 1 could also be useful in main group complex chemistry. For example, the transition metal 2 and main group 3 coordination chemistry of triazapentadienyl ligands 2 is beginning to develop. Formazans 3 are a class of molecules known for well over a century 4 which bear a strong structural resemblance to β-diketimines. However, the coordination chemistry of formazans has only received sporadic attention, 5 ...
