Synthesis, crystal structures and magnetic properties of two Ni-Dy heterometallic complexes with the structural topologies regulated by employing different Schiff base ligands
From Bowls to Capsules: Assembly of Hexanuclear Ni
<sup>II</sup>
Rings Tailored by Alkali Cations
作者:Júlia Mayans、Constantinos C. Stoumpos、Mercé Font‐Bardia、Albert Escuer
DOI:10.1002/chem.202001900
日期:2020.9
The supramolecular arrangement of the Ni6} rings was tailored by the size of the alkali cations, showing the transition from Ni6‐M2‐Ni6} capsules (M=LiI and NaI) to Ni6‐M} bowls (M=KI and CsI). The alkyl co‐cations are determinant to stabilize the assemblies by means of CH⋅⋅⋅π interactions on the exo side of the metallamacrocycles. The effect on the topology of the supramolecularassemblies of the
具有内和外连接位点的阴离子六核Ni II金属环已被用作构建模块,以产生一系列纳米尺寸的胶囊和碗。Ni 6 }环的超分子排列是根据碱金属阳离子的大小定制的,显示了从Ni 6 ‐M 2 ‐Ni 6 }胶囊(M = Li I和Na I)到Ni 6 ‐M }碗(M = K I和Cs I)。所述烷基共阳离子是行列式通过在CH⋅⋅⋅π相互作用的方法稳定组件外金属环的侧面。分析了阳离子大小,阳离子电荷,Et 3 NH +或Me 4 N +抗衡阳离子对超分子组装体拓扑的影响。磁性测量结果表明,环内部存在铁磁和反铁磁相互作用,从而允许S = 0的基态。
Two biologically inspired tetranuclear nickel(II) catalysts: effect of the geometry of Ni4 core on electrocatalytic water oxidation
作者:Jinmiao Wang、Xiangmin Meng、Wangjing Xie、Xia Zhang、Yuhua Fan、Mei Wang
DOI:10.1007/s00775-020-01846-4
日期:2021.5
electrochemistry, in-situ UV–Vis spectroelectrochemistry and DLS. Both of the two complexes feature a core composed of four Ni(II) ions with the same peripheral ligation provided by the anionic di(pyridin-2-yl)methanediol and MeCOO− ligands. Whereas, complex 1 possesses one distorted cubane-like [Ni4(µ3-O)4] core, while 2 has one extended butterfly-like [Ni4(µ3-O)2] core. The homogeneous electrocatalytic reactivity
Solvothermal synthesis of high nuclearity copper and copper-lanthanide clusters based on di(pyridin-2-yl)methanone
作者:Enhong Sheng、Weibin Yu、Xing Li
DOI:10.1016/j.inoche.2007.12.021
日期:2008.4
High nuclearity Cu-11 (1) and Cu(6)Ln(2) (Ln = Eu, 2; Gd, 3) cluster compounds with unusual structural features have been synthesized under solvothermal conditions based on di(pyridin-2-yl)methanone [(py)(2)CO] derivatives. Magnetic susceptibility measurement for 1 and 3 are consistent with the existence of anti-ferromagnetic interaction. (C) 2008 Elsevier B.V. All rights reserved.
Synthesis, crystal structures and magnetic properties of two Ni-Dy heterometallic complexes with the structural topologies regulated by employing different Schiff base ligands
作者:Huan Liu、Chun-Fang Yu、Hui-Sheng Wang、Zhi-Quan Pan