occurrence of field-induced SMM behavior for the Gd3+ (2_Cl and 2_F), Dy3+ (3_Cl and 3_F), and Tb3+ complexes (4_Cl and 4_F). Solid-state photophysical measurements for the Eu3+ (1_Cl and 1_F) and Tb3+ complexes (4_Cl and 4_F) reveal that both monoprotonated chloro- and fluoro-substituted phenyl(oxamate) ligands are able to sensitize the lanthanide(III)-based luminescence in the visible region, through an
                                    在众所周知的单分子磁体(
SMM)类中实现附加的光学(发光)特性被认为是获得下一代用于量子信息存储和计算的光磁材料的有前途的途径。在此,我们报道了两个新的通式为Bu 4 N [Ln III(HL)4(dmso)]· n H 2 O的
镧系元素(III)配合物的新型光学和磁结构研究,其中H 2 L = X-Cl和n = 2的N-(4-X苯基)草酰胺酸[Ln = Eu(1_Cl),Gd(2_Cl),Dy(3_Cl)和Tb(4_Cl)],X = F且n = 3 [Ln = Eu(1_F),Gd(2_F),Dy(3_F)和Tb(4_F)]。所有这些化合物都是单核物种,在低对称的九配位环境(LnO 9)中具有每个
镧系元素(III)阳离子,该环境由四个二齿
单质子化的
草酸酯基和一个dmso分子组成。磁测量表明Gd 3+(2_Cl和2_F),Dy 3+(3_Cl和3_F)和Tb 3+络合物(4_Cl和4_F)