Toggling the Z-type interaction off-on in nickel-boron dihydrogen and anionic hydride complexes
Toggling the Z-type interaction off-on in nickel-boron dihydrogen and anionic hydride complexes
复制标题
在镍硼二氢和阴离子氢化物络合物中切换 Z 型相互作用
DOI：
10.1039/d2cc03219h
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发表时间：
2022
影响因子：
4.9
通讯作者：
Lu, Connie C.
中科院分区：
文献类型：
--
作者：
Prat, Jacob R.;Cammarota, Ryan C.;Graziano, Brendan J.;Moore, James T.;Lu, Connie C.
完成了一系列13族镍配合物的合成和表征，合成了一个配位不饱和的镍-硼配合物及其含氢、氮、氢配体的衍生物。在四氢呋喃中，Ni(0)-B(III)反转键的“开启”使镍结合的阴离子氢化物具有极低的热力学水合度−1。硼金属配体的灵活拓扑结构赋予了良好的氢结合亲和力和较强的氢化物亲和性，尽管在去质子化形成氢化物的过程中以高的氢碱度为代价。
Completing a series of nickel-group 13 complexes, a coordinatively unsaturated nickel-boron complex and its derivatives with a H2, N2, or hydride ligand were synthesized and characterized. The toggling “on” of a Ni(0)–B(III) inverse-dative bond enabled the stabilization of a nickel-bound anionic hydride with a remarkably low thermodynamic hydricity of kcal mol−1 in THF. The flexible topology of the boron metalloligand confers both favorable hydrogen binding affinity and strong hydride donicity, albeit at the cost of high H2 basicity during deprotonation to form the hydride.