Synthesis and characterization by fast atom bombardment and electrospray mass spectrometry of new copper(I) complexes with substituted 1,4,5,8,9,12-hexaazatriphenylenes and macrocycles
A series of new homo- and hetero-leptic copper(I) complexes have been prepared with various substituted polychelating 1,4,5,8,9,12-hexaazatriphenylene (hat) derivatives. The homoleptic complexes, the stability of which is strongly related to the number and nature of the substituents borne by their two identical acyclic hat ligands, appeared in general less stable than their corresponding heteroleptic complexes prepared with the similar hat acyclic ligand and a macrocycle derived from a 1,10-phenanthroline. The results show clearly that by tethering the first chelate to a macrocycle of adequate size, more stable complexes can be obtained. All the complexes described were characterized by fast atom bombardment and electrospray mass spectrometry.