Trinuclear Diamagnetic Nickel(II) Complexes with Bridging 3‐Arylpyrazolato Ligands
作者:Kifah S. M. Salih、Susann Bergner、Harald Kelm、Yu Sun、Anneken Grün、Yvonne Schmitt、Roland Schoch、Mark Busch、Naina Deibel、Stefan Bräse、Biprajit Sarkar、Matthias Bauer、Markus Gerhards、Werner R. Thiel
DOI:10.1002/ejic.201300925
日期:2013.12.2
Orange-red trinuclear nickel(II) complexes are obtained by reacting Ni(ClO4)2(H2O)6 with 3(5)-arylpyrazoles in the presence of a base. Herein, the diamagnetic nickel centers are coordinated in a square-pyramidal manner by four pyrazolato ligands, each of which bridges two nickel sites. The structurally unique complexes were investigated by NMR, IR, fluorescence, and X-ray spectroscopy. All seven compounds
在碱存在下,通过 Ni(ClO4)2(H2O)6 与 3(5)-芳基吡唑反应获得橙红色三核镍 (II) 配合物。在此,抗磁性镍中心通过四个吡唑根基配体以方形锥体方式配位,每个配体桥接两个镍位点。通过 NMR、IR、荧光和 X 射线光谱研究了结构独特的配合物。这里描述的所有七种化合物都通过单晶 X 射线衍射在结构上阐明。以 3(5)-二茂铁基吡唑为底物,获得了具有六个氧化还原活性二茂铁基部分的非金属体系。