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Ln2O3、硝酸铁、邻菲罗啉和钛铁试剂(tiron)通过水热法自组装合成了2个异质同晶的3d-4f杂核配合物[Fe(phen)3]2[FeLn(H2O)(tiron)3]·6H2O,其中,Ln=HoⅢ(1)和YbⅢ(2)。X-射线单晶衍射分析表明,晶体属立方晶系,P213空间群。3个tiron4-配体利用酚氧桥联Ln3+和Fe3+形成具有C3对称性的[FeLn(H2O)(tiron)3]6-异双核配位单元,其中七配位的Ln3+呈现一种畸变的单帽反三棱柱配位构型。配阳离子[Fe(phen)3]3+通过phen-phen之间的π-π相互作用和与配阴离子间的静电引力等作用组装成三维的超分子。在2～300 K温度范围内测试了配合物的变温磁化率,结果表明,Ln(Ⅲ)-Fe(Ⅲ)之间存在反铁磁性相互作用。
Two heterogeneous isoforms of 3d-4f heteronuclear complexes [Fe (phen) 3] 2 [FeLn (H 2 O)] 2 were synthesized by hydrothermal method using Ln2O3, ferric nitrate, phenanthroline and tiron ) (tiron) 3] · 6H2O, where Ln = Ho III (1) and Yb III (2). X-ray single crystal diffraction analysis showed that the crystal belongs to cubic system, P213 space group. Three tiron4-ligands formed a [FeLn (H2O) (tiron) 3] 6-heterobicyclic coordination unit with C3 symmetry by phenolic oxygen bridging Ln3 + and Fe3 +, in which the seven-coordinated Ln3 + Cap anti-triangular prism coordination configuration. With the cation [Fe (phen) 3] 3+ through the phen-phen π-π interaction between the interaction with anions and electrostatic interactions between the assembly into three-dimensional supermolecules. The temperature-dependent magnetic susceptibility of the complex was tested in the temperature range of 2 ~ 300 K. The results show that the antiferromagnetic interaction exists between Ln (Ⅲ) -Fe (Ⅲ).