具有内部N 2 O 2,外部O 2 O 2或O 2 O配位点和来自酰胺功能的氧原子(不参与这些位点)的三阴离子配体产生双核Cu-Ln络合物,其自组装为四核物质Cu和Ln离子的另一种排列方式。这种交替的Cu-Gd排列阻碍了可能反铁磁性的Cu-Cu和Gd-Gd相互作用,并有利于铁磁性Cu-Gd相互作用,其强度取决于电桥的性质,由单个氧原子制成的苯氧基桥或所制造的酰胺桥。三个NCO原子。根据不同的配体,苯氧基桥可以是单(CuOGd)或双(CuO 2Gd),而amidato桥始终是单个(CuNCOGd)桥。涉及通过两个amidato桥的三核Cu-Gd-Cu排列的特殊复合物证实,通过amidato桥的Cu-Gd相互作用始终弱于通过phenoxo桥的相互作用。当存在两个酰胺桥时,可以使用涉及两个以上Cu-Gd实体的备用Cu-Gd排列获得配合物。这两个酰胺基桥可以来自主要配体,例如具有两个酰胺官能团的四
characterized by Cu–Gd interactions through single‐oxygen and three‐atom bridges consisting of oxygen, carbon, and nitrogen atoms, present weak ferromagnetic exchangeinteractions, whereas complexes with bridges made of two atoms, such as the nitrogen–oxygen oximato bridge, are subject to weak antiferromagnetic exchangeinteractions. Therefore, a bridge with an odd number of atoms induces a weak ferromagnetic