Ruthenium complexes bearing a tridentate polypyridyl ligand with non-coordinating donor atoms: Construction of a specific coordination environment involving noncovalent interactions

Various ruthenium complexes which contain CO and a tridentate polypyridine with non-coordinating nitrogen atoms are prepared for the development of specific reactions using noncovalent interactions. Single or double intramolecular noncovalent interactions are formed between the carbonyl carbon and the non-coordinating nitrogen atom(s) of the polypyridine, depending on the axial ligands.175