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-hexaazatr iphenylene (hat) derivatives. The homoleptic complexes, the stability of which is strongly related to the number and nature of the substitue nts borne by their two identical acyclic hat ligands, appeared in gene ral less stable than their corresponding heteroleptic complexes prepar ed 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 fas t atom bombardment and electrospray mass spectrometry.