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摘要
Two novel dinuclear Ln(III) complexes [Gd-2(L)(4)(HCOO)(2)(CH3OH)(2)] (1) and [Dy-2(L)(4)(CH3COO)(2)(CH3OH)(2)] (2) (HL=2-hydroxy-3-methoxy-5-bromobenzaldehyde oxime) have been successfully synthesized and characterized by single crystal X-ray diffraction, IR spectroscopy and elemental analyses. Single crystal X-ray crystallographic analyses reveal that these two complexes have similar structures, in which two symmetric nine -coordinate Ln(III ions are bridged by two phenoxide groups from two Schiff base ligands, two formate ions for 1 and two acetate ions for 2 respectively. Magnetic studies reveal that weak antiferromagnetic interaction between G(III) ions existing in complex 1, while complex 2 shows slow relaxation of magnetization. CCDC: 1570377, 1; 1570378, 2.
