A Ni
<sup>II</sup>
–Bis(diphosphine)–Hydride Complex Containing Proton Relays – Structural Characterization and Electrocatalytic Studies
作者:Parthapratim Das、Ryan M. Stolley、Edwin F. van der Eide、Monte L. Helm
DOI:10.1002/ejic.201402250
日期:2014.9
react with [Ni(CH3CN)6](BF4)2 to form the bis-diphosphine Ni(II)-complex [Ni(PiPr2NPh2)2](BF4)2, which acts as a proton reduction electrocatalyst. In addition to [Ni(PiPr2NPh2)2]2+, we report the syntheses and structural characterization of the Ni(0)-complex Ni(PiPr2NPh2)2, and the Ni(II)-hydride complex [HNi(PiPr2NPh2)2]BF4. The [HNi(PiPr2NPh2)2]BF4 complex represents the first Ni(II)-hydride in the [Ni(PR2NR'2)2]2+
报道了新的 1,5-二苯基-3,7-二(异丙基)-1,5-二氮杂-3,7-二磷酸环辛烷配体 PiPr2NPh2 的合成。两当量的配体与 [Ni(CH3CN)6](BF4)2 反应形成双二膦 Ni(II)-配合物 [Ni(PiPr2NPh2)2](BF4)2,作为质子还原电催化剂. 除了 [Ni(PiPr2NPh2)2]2+,我们还报告了 Ni(0)-复合物 Ni(PiPr2NPh2)2 和 Ni(II)-氢化物复合物 [HNi(PiPr2NPh2)2] 的合成和结构表征BF4。[HNi(PiPr2NPh2)2]BF4 复合物代表 [Ni(PR2NR'2)2]2+ 化合物家族中第一个 Ni(II)-氢化物,有待分离和结构表征。除了实验数据外,还使用最近为 [Ni(PR2NR') 建立的线性自由能关系分析了 [Ni(PiPr2NPh2)2]2+ 促进的电催化机理。2)2]2+ 家庭。我们感谢 Aaron