New Ni(II) complexes based on N′NN′ pincer ligands: syntheses, structures and B–F cleavage of BF<sub>4</sub><sup>−</sup> promoted by a di-cationic Ni(II) center
作者:Wenjing Xiang、Qin Luo、Huan Jiang、Xianggao Meng、Renjie Li、Jing Zhang、Tianyou Peng
DOI:10.1080/00958972.2016.1196360
日期:2016.8.2
Similarly, a neutral complex Ni(L2)Cl2 (4) was formed by reaction of NiCl2 with 2,6-bis(diethylaminomethyl)pyridine (L2), and the experimental results indicate that Ni(II) of 4 adopts a slightly distorted square pyramidal geometry, which is different from that of 1. Although the reaction of 4 with one equivalent of AgBF4 resulted in a mono-cationic complex, [Ni(L2)Cl]BF4 (5), with Ni(II) in a slightly distorted
摘要 通过 NiCl2 与 2,6-双(异丙基氨基甲基)吡啶 (L1) 在 THF 中反应,然后单-阳离子络合物 [Ni(L1)Cl](BF4) (2) 和双阳离子络合物 [Ni(L1)(CH3CN)3](BF4)2 (3) 可以通过从 1分别在四氢呋喃或乙腈中加入一或两当量的 AgBF4。同样,NiCl2与2,6-双(二乙氨基甲基)吡啶(L2)反应形成中性配合物Ni(L2)Cl2(4),实验结果表明4的Ni(II)采用略微扭曲的正方形金字塔几何形状,与 1 的几何形状不同。 虽然 4 与一当量的 AgBF4 反应生成了单阳离子络合物,[Ni(L2)Cl]BF4 (5),Ni(II) 在略微扭曲的方形平面配位几何中,意外的双核 Ni(II) 配合物 [Ni(L2-H)(MeOH)F(μ-F)]2(BF4)2 (6) 与两种氟化物通过与两当量的 AgBF4 在甲醇中的反应,从 4 中提取两个