Chemistry Letters, Vol.32, No.9, 808-809, 2003
Structure of cofacial cyclic dimer with Schiff base ligands
Reactions of CuCl2.2H(2)O with tetradentate bis-Schiff base ligands yielded dinuclear copper(II) complexes of [Cu-2(II)(sah)(2)] (1) and [Cu-2(II)(sao)(2)] (2) (H(2)sah = 1,7-bis(salicylideneamino)-heptane and H(2)sao = 1,8-bis(salicylideneamino)octane). X-ray crystallographic analyses revealed that 1 and 2 have a cofacial cyclic structure with an intramolecular cavity.