Si–H Bond Activation and Dehydrogenative Coupling of Silanes across the Iron–Amide Bond of a Bis(amido)bis(phosphine) Iron(II) Complex
Si–H Bond Activation and Dehydrogenative Coupling of Silanes across the Iron–Amide Bond of a Bis(amido)bis(phosphine) Iron(II) Complex
复制标题
双(酰胺基)双(膦)铁(II)配合物铁酰胺键上硅烷的Si-H键活化和脱氢偶联
DOI：
10.1021/jacs.2c12157
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发表时间：
2023
影响因子：
15
通讯作者：
Thomas, Christine M.
中科院分区：
文献类型：
--
作者：
Stevens, Jeremiah E.;Moore, Curtis E.;Thomas, Christine M.
尽管Si-Si键具有实用性，但通过贱金属形成Si-Si键的实例相对较少。在这项工作中，一个四配位铁配合物，（PNNP）FeII，显示出强烈激活的Si-H键在初级硅烷的Fe-酰胺键中的金属-配体合作的方式。当用过量的硅烷处理时，Si-Si双折射均偶联被证明发生在整个Fe-Namidebond没有伴随的氧化和自旋状态的变化在Fe中心。
Despite the utility of Si–Si bonds, there are relatively few examples of Si–Si bond formation by base metals. In this work, a four-coordinate iron complex, (PNNP)FeII, is shown to strongly activate the Si–H bonds in primary silanes across the Fe–amide bonds in a metal–ligand cooperative fashion. Upon treatment with excess silane, Si–Si dehydrogenative homocoupling is shown to occur across the Fe–Namidebond without concomitant oxidation and spin state changes at the Fe center.