Ligand-Based Storage of Protons and Electrons in Dihydrazonopyrrole Complexes of Nickel
Ligand-Based Storage of Protons and Electrons in Dihydrazonopyrrole Complexes of Nickel
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DOI：
10.1002/chem.201800658
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发表时间：
2018-06-04
影响因子：
4.3
通讯作者：
Anderson, John S.
中科院分区：
文献类型：
--
作者：
Chang, Mu-Chieh;McNeece, Andrew J.;Anderson, John S.
合成并表征了一种新的二腙吡咯配体及其镍配合物。电化学研究和化学反应性测试表明，这些配合物可以可逆地存储电子和质子，或等效的H-原子，通过配体为基础的事件。储存的氢原子当量可以转移到小分子，如乙腈或氧气。此外，该系列配合物可以采用多种不同的配位模式。除了一个e（-）反应性，两个e（-）亲电氧化膦也被证明。总之，这些结果表明，二腙吡咯配合物代表了一个几何和电子灵活的支架，用于控制电子和质子的流动。
A newly developed dihydrazonopyrrole ligand and corresponding Ni complexes have been synthesized and thoroughly characterized. Electrochemical studies and chemical reactivity tests show that these complexes can reversibly store both electrons and protons, or equivalently H-atoms, via ligand-based events. The stored H-atom equivalent can be transferred to small molecules such as acetonitrile or oxygen. Furthermore, this series of complexes can adopt a variety of different coordination modes. In addition to one e(-) reactivity, the two e(-) electrophilic oxidation of phosphines is also demonstrated. Taken together, these results show that dihydrazonopyrrole complexes represent a geometrically and electronically flexible scaffold for controlling the flow of both electrons and protons.