Abstract
One couple of enantiomerically pure chiral CuIIGdIII coordination polymers [Cu((S, S)-Salcy)Gd(NO3)3·CH3OH]n (1) and [Cu((R, R)-Salcy)Gd(NO3)3·CH3OH]n (2) [(S, S)-Salcy or (R, R)-Salcy=(S, S)- or (R, R)-N, N′-(1,2-cyclohexanediylethylene) bis(3-ethoxysalicylideneiminato)dianion], were synthesized and structurally characterized. The self-assembly by intermolecular semicoordination of nitrate to copper(II) formed a one-dimensional zigzag chain structure. Magnetic property studies indicated that 1 and 2 exhibited very strong ferromagnetic interaction (J=6.285 and 7.408cm−1, respectively) between copper(II) and gadolinium(III) metal centers among the related complexes, although the dihedral angles (8.1° and 8.6°, respectively) of CuO2 and GdO2 are a little large.
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