Concise Chemistry Modulation of the SMM Behavior within a Family of Mononuclear Dy(III) Complexes
作者:Xiangyu Liu、Xiufang Ma、Weize Yuan、Peipei Cen、Yi-Quan Zhang、Jesús Ferrando-Soria、Gang Xie、Sanping Chen、Emilio Pardo
DOI:10.1021/acs.inorgchem.8b02602
日期:2018.12.3
By means of the facile chemistry, structural assembly, and transformation of four mononuclear Dy(III) complexes, Dy(bpad)3·CH3OH·H2O (1), Dy(bpad)2(H2O)2·NO3 (2), [Dy(bpad)2(tmhd)] (3), and [Dy(bpad)2(btfa)] (4) (Hbpad = N3-benzoylpyridine-2-carboxamidrazone, tmhd = 2,2,6,6-tetramethylheptane-3,5-dione, btfa = 3-benzoyl-1,1,1-trifluoroacetone), with distinct architectures and local symmetries were
通过四种单核Dy(III)配合物的化学,结构组装和转化,Dy(bpad)3 ·CH 3 OH·H 2 O(1),Dy(bpad)2(H 2 O)2 · NO 3(2),[Dy(bpad)2(tmhd)](3)和[Dy(bpad)2(btfa)](4)(Hbpad = N 3-苯甲酰基吡啶-2-甲酰胺ami,tmhd = 2,2,6,6-四甲基庚烷-3,5-二酮,btfa = 3-苯甲酰基-1,1,1-三氟丙酮),具有不同的结构和局部对称性。这些配合物中Dy(III)离子周围配位几何的差异影响了每个Dy位点的晶体场强度和局部各向异性(D)的局部张量及其相对取向,因此引起了多种SIM行为并具有明显的区别。 106.93 K中的松弛能垒1,52.55 K代表2,48.16 K代表3,和51.41 K表示4。从头开始解释了四种配合物的磁性和磁各向异性的差异 计算,与实验结果相对应。