Novel oligonuclear ZnII4, ZnII8 and ZnII2NiII2 complexes with bis(benzoylacetone)-1,3-diiminopropan-2-ol

Reactions of bis(benzoylacetone)-1,3-diiminopropan-2-ol (abbreviated as H3L) with zinc salts in the presence of triethylamine afforded the compounds [Zn4(HL)4]·4CH3CN (1·4CH3CN) and [Zn8L4(OH)4]·2CH3CN (2·2CH3CN). Further reaction of 1 with Ni(CH3COO)2·4H2O gave the heteronuclear species [Zn2Ni2(L)2(CH3O)2(CH3OH)2] (3). The crystal structures of 1·4CH3CN, 2·2CH3CN and 3 were determined by the X-ray diffraction method.