The synthesis of the ligand 5-bis[2-(3,5-dimethyl-1-pyrazolyl)ethyl]amine-1,10-phenanthroline and of its ruthenium(II) and rhenium(I) complexes. Binuclear species with Cu(I) and some photophysical properties

The synthesis and characterization of the new polyfunctional ligand phen-pz a (5-bis[2-(3,5-dimethyl-1-pyrazolyl)ethyl]amine-1,10-phenanthroline) are d escribed. Also reported are the preparations and some photophysical propert ies of the ruthenium(II) and rhenium(I) complexes [Ru(bpy)(2)(phen-pza)](PF 6)(2) (bpy = 2,2'-bipyridine) and [Re(CO)(3)Br(phen-pza)], respectively, an d the supramolecular copper(I) adducts [Ru(bpy)(2)(phen-pzaCu(I))](PF6)(3) and [Re(CO)(3)Br(phen-pzaCu(I))](PF6). Limited studies of copper(II) adduct s and photophysical changes upon reaction with NO are also described. The s ynthesis, structural characterization and some redox chemistry of the model copper(II) complex [Cu(pza)](CF3SO3)(2) (pza = bis[2-(3,5-dimethyl-1-pyraz olyl)ethyl]amine) are reported as are the syntheses and characterizations o f 5-diethylamino-1,10-phenanthroline (phen-dea) and rhenium(I) complex Re(C O)(3)Br(phen-dea).