Tp*=hydrotris(3,5‐dimethyl‐1‐pyrazolyl)borate), can adopt the structure of non‐Kramers SMMs and exhibit their behaviors. Dynamic magnetic studies indicated that both compounds showed slow magnetic relaxation under dc field and a relatively high effective energy barrier (111 K for 1, 46 K for 2). Magnetic diluted 1 a[(Tp)Tm0.05Y0.95(COT)] and 2 a[(Tp*)Tm0.05Y0.95(COT)] even exhibited magnetic relaxation under zero
近年来,研究了大量基于
镧系元素的(Tb III,Dy III和Er III)单分子磁体(
SMM),而其他
镧系元素(例如Tm III)的例子仍然未知。在这里,我们首次展示了通过合理地操纵配位域,两种two化合物1 [(Tp)Tm(COT)]和2 [(Tp *)Tm(COT)](Tp = hydrotris(1‐
吡唑基)
硼酸酯; COT =环
辛酸酯; Tp * =氢三(3,
5-二甲基-1-
吡唑基)
硼酸酯)可以采用非克拉默
SMM的结构并表现出它们的行为。动态磁研究表明,这两种化合物在直流磁场下均显示出缓慢的磁弛豫和相对较高的有效能垒(111 K1,46 K中2)。磁稀释的1 a [(Tp)Tm 0.05 Y 0.95(COT)]和2 a [(Tp *)Tm 0.05 Y 0.95(COT)]甚至在零直流磁场下也表现出磁弛豫。相对论的从头计算与单晶角度分辨磁力测量结果相结合,揭示出强的易轴各向异性