N-H Bond Formation at a Diiron Bridging Nitride.
N-H Bond Formation at a Diiron Bridging Nitride.
复制标题
在二铁桥氮化物上形成N-H键。
DOI:
10.1002/anie.202006391
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发表时间:
2020-08-24
期刊:
影响因子:
--
通讯作者:
Tomson NC
中科院分区:
文献类型:
--
作者:
Zhang S;Cui P;Liu T;Wang Q;Longo TJ;Thierer LM;Manor BC;Gau MR;Carroll PJ;Papaefthymiou GC;Tomson NC
Despite their connection to ammonia synthesis, little is known about the ability of iron-bound, bridging nitrides to form N–H bonds. Herein we report a linear diiron bridging nitride complex supported by a redox-active macrocycle. The unique ability of the ligand scaffold to adapt to the geometric preference of the bridging species was found to facilitate the formation of N–H bonds via proton-coupled electron transfer to generate a μ-amide product. The structurally analogous μ-silyl- and μ-borylamide complexes were shown to form from the net insertion of the nitride into the E–H bonds (E = B, Si). Protonation of the parent bridging amide produced ammonia in high yield, and treatment of the nitride with PhSH was found to liberate NH3 in high yield through a reaction that engages the redox-activity of the ligand during PCET.
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影响因子:
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通讯作者:
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