Yi Gangji, Cui Huihui, Zhang Chunyang, Zhao Wen, Chen Lei, Zhang Yi-Quan, Chen Xue-Tai, Song You, Yuan Aihua
School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, P. R. China.
Dalton Trans. 2020 Feb 21;49(7):2063-2067. doi: 10.1039/c9dt04881b. Epub 2020 Jan 30.
Two mononuclear, seven-coordinate Co(ii) and Fe(ii) complexes Co(BPA-TPA) (1-Co) and Fe(BPA-TPA) (2-Fe) with a capped trigonal prismatic coordination geometry have been synthesized from the pentapyridyldiamine (BPA-TPA) ligand. 1-Co exhibits easy plane anisotropy in which slow magnetic relaxation is observed under a 1.0 kOe dc field. It is the first example of a single-ion magnet (SIM) of a 3d transition metal ion with a capped trigonal prismatic configuration. 2-Fe is not a SIM at 1.8 K.
由五吡啶二胺（BPA-TPA）配体合成了两种单核、七配位的钴（II）和铁（II）配合物Co(BPA-TPA)（1-Co）和Fe(BPA-TPA)（2-Fe），它们具有盖帽三角棱柱配位几何结构。1-Co表现出易面各向异性，在1.0 kOe直流磁场下观察到缓慢的磁弛豫。它是具有盖帽三角棱柱构型的3d过渡金属离子单离子磁体（SIM）的首个例子。2-Fe在1.8 K时不是单离子磁体。
