Synthesis and characterization of lanthanide [Ln(L)]2 complexes of N4O3 amine phenol ligands with phenolate oxygen bridges: evidence for very weak magnetic exchange between lanthanide ions
作者:Shuang Liu、Lucio Gelmini、Steven J. Rettig、Robert C. Thompson、Chris Orvig
DOI:10.1021/ja00041a028
日期:1992.7
of a lanthanide (Ln) nitrate produces the mononuclear complex [Ln(Hsub3}L)(NOsub3}sub3})]; homodinuclear complexes [Ln(l)]sub 2} were obtained from the reaction of lanthanide salts with the respective ligand in the presence of a base (hydroxide or acetate). The X-ray structure of [Gd(L1)]sub 2}center_dot}2CHClsub3} (Hsub3}L1 = tris(((2-hydroxybenzyl)amino)ethyl)amine) has been determined;
Liu, Shuang; Rettig, Steven J.; Orvig, Chris, Inorganic Chemistry, 1992, vol. 31, # 26, p. 5400 - 5407
作者:Liu, Shuang、Rettig, Steven J.、Orvig, Chris
DOI:——
日期:——
Switching the anisotropy barrier of a single-ion magnet by symmetry change from quasi-D5h to quasi-Oh
作者:Jun-Liang Liu、Yan-Cong Chen、Yan-Zhen Zheng、Wei-Quan Lin、Liviu Ungur、Wolfgang Wernsdorfer、Liviu F. Chibotaru、Ming-Liang Tong
DOI:10.1039/c3sc50843a
日期:——
behavior of a single-ion magnet. The coordination geometry of the DyIII site of a [Zn–Dy–Zn] complex changes from pentagonal–bipyramid (quasi-D5h) to octahedron (quasi-Oh), inducing an energy barrier change from 305 cm−1 (439 K) to a negligible value, respectively. Ab initio calculations reveal that the ideal D5h–DyIII is of perfect axiality with a substantial energy barrier in accordance with the experimental
可逆的单晶至单晶转换用于显着改变单离子磁体的弛豫行为。[Zn–Dy–Zn]络合物的Dy III位点的配位几何形状从五角双锥体(准D 5h)转变为八面体(准O h),引起了305 cm -1的能垒改变(439 K)分别忽略不计。从头算计算表明,根据实验结果,理想的D 5h –Dy III具有理想的轴心且具有明显的能垒。