Wide-Range UV-to-Visible Excitation of Near-Infrared Emission and Slow Magnetic Relaxation in Ln<sup>III</sup>(4,4′-Azopyridine-1,1′-dioxide)[Co<sup>III</sup>(CN)<sub>6</sub>]<sup>3–</sup> Layered Frameworks
作者:Szymon Chorazy、Mikolaj Zychowicz、Shin-ichi Ohkoshi、Barbara Sieklucka
DOI:10.1021/acs.inorgchem.8b02096
日期:2019.1.7
hexacyanidocobaltate(III), gave a series of magnetoluminescent coordination polymers, [LnIII(apdo)(H2O)4}CoIII(CN)6}]·2H2O (Ln = Nd, 1; Tb, 2; Dy, 3; Er, 4; Tm, 5; Yb, 6). They are hybrid organic–inorganic layered frameworks composed of cyanido-bridged Ln2(μ-NC)4Co2} squares linked by Ln–apdo–Ln bridges into a coordination network of a mixed 4- and 8-metal ring topology. Lanthanide(III) complexes, [LnIII(μ-apdo)2(H2O)4(μ-NC)2]+
三价镧系离子与两个分子接头有机4,4'-偶氮吡啶-1,1'-二氧化物(apdo)和无机六氰基钴酸酯(III)结合,得到了一系列的磁致发光配位聚合物,[Ln III(apdo)( H 2 O)4 } Co III(CN)6 }]·2H 2 O(Ln = Nd,1 ; Tb,2 ; Dy,3 ; Er,4 ; Tm,5 ; Yb,6)。它们是由氰基桥联的Ln 2(μ-NC)4 Co 2}由Ln–apdo–Ln桥链接的正方形成为混合的4和8金属环形拓扑的协调网络。十二面体几何形状扭曲的镧系元素[Ln III(μ-apdo)2(H 2 O)4(μ-NC)2 ] +通过抗磁性[Co III(CN)6 ] 3–和-分离。 apdo链接器。其结果,1 - 6揭示了磁化的电场诱导慢松弛,与钕的单离子源的典型依赖于温度的松弛III含1,DY III含3和Yb含III 6。精确分析了相关的交流磁数据,表