The nickel-C₄F₈ fragment coordinates an aminoaryl N–H ketimine to form a stable complex, which upon treatment with base and oxidant leads to an N–N bond-forming reaction and the release of indazole product. A key and previously unidentified intermediate in the formation of the indazole was a diimine complex of nickel bearing significant charge on the aryl ring that initially contained the amine substituent. The C₄F₈ coligand was key for the redox transformation and for stabilization of the intermediate for characterization.

中文翻译：

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在单核镍平台上通过底物结合的阴离子形成氮-氮键。

镍-C ₄ F ₈片段与氨基芳基NH酮亚胺配位形成稳定的络合物，经碱和氧化剂处理后会导致N-N键形成反应和吲唑产物的释放。吲唑形成过程中的一个关键的，以前无法确定的中间体是镍的二亚胺配合物，该镍的亚胺络合物在芳基环上带有大量电荷，该芳族环最初包含胺取代基。C ₄ F ₈大肠菌是氧化还原转化和稳定表征中间体的关键。