We successfully obtained two type of heterometallic complexes [Fe₄Dy₂(L¹)₂(µ₄-O)₂(piv)₄(H₂O)₂(NO₃)₄]·CH₃CN·CH₃OH (1) and [Fe₆Dy₂(L¹)₂(µ₄-O)₂(CH₃COO)₆(OH)₂(H₂O)₂(NO₃)₆]·CH₃CN (2) by using 2,2′-((2-((2-hydroxyethyl)amino)cyclohexyl)azanediyl)bis(ethan-1-ol) (H₃L¹), Dy(NO₃)₃·6H₂O, FeCl₃ and pivalic acid (piv) or acetic acid under room temperature in different solvent. Crystal structure showed that the central structure of [\({{\text{Fe}}}_{4}^{{\text{III}}}\)(µ₄-O)₂]⁸⁺ arranged in what was often termed an absent cubic shape, although here the Fe centers were strictly coplanar. Each Fe₃ triangle was connected to the capping Dy(III) through µ₄-O bridges for complex 1, and each Fe₃ triangle was connected to the capping Fe(III) through µ₄-O bridges for complex 2. It might be due to the steric effect that the coordination atoms of piv ligands chelated and blocked the structure. AC magnetic susceptibilities exhibited that complex 1 and 2 showed out-of-phase (χ″) component of ac-susceptibilities at zero Oe static magnetic field over the frequency range of 9–999 Hz, which energy barriers were 0.44 and 0.13 K. And their energy barriers were 1.2 and 12.2 K at applied 1000 Oe static magnetic field.

我们成功地获得了两种类型的杂金属配合物[Fe ₄ Dy ₂（L ¹）₂（µ ₄ -O）₂（piv）₄（H ₂ O）₂（NO ₃）₄ ]·CH ₃ CN·CH ₃ OH（1）和[Fe ₆ Dy ₂（L ¹）₂（µ ₄ -O）₂（CH ₃ COO）₆（OH）₂（H ₂ O）₂（NO ₃）₆ ]·CH ₃ CN（2）通过使用2,2'-（（2-（（（2-羟乙基）氨基）环己基）氮杂二基）双（乙烷-1-醇）（H ₃ L ¹），Dy（NO ₃）₃ ·6H ₂ O，FeCl ₃和新戊酸（piv）或乙酸在室温下于不同溶剂中洗脱。晶体结构表明[ \（{{\ text {Fe}}} _ {4} ^ {{\ text {III}}} \\）（µ ₄ -O）₂ ] ^8+的中心结构排列成尽管此处的Fe中心严格共面，但通常被称为无立方体形状。每个铁₃三角形通过配合物1的µ ₄ -O桥与封端Dy（III）连接，每个Fe ₃三角形通过配合物2的µ ₄ -O桥与封端Fe（III）连接。piv配体的配位原子螯合并阻断了结构，这可能是由于空间效应。交流磁化率显示复合物1和2显示异相（χ”）在9–999 Hz频率范围内，零Oe静磁场下的磁化率分量，其能垒为0.44和0.13K。在施加1000 Oe静磁场时其能垒为1.2和12.2K。