A new NO-bidentate pro-ligand (HL), [ML2] (M = Cu, Zn) and [CuL2][BF4] have
been synthesised; [CuL2]. 4DMF and [CuL2][BF4]. 2CH(2)Cl(2) have been crys
tallographically and spectroscopically characterised; these data indicate t
hat [CuL2](+) cations are constituted as [Cu2+(L-.)(L-)](+) and involve the
phenoxyl radical L-..