Ligand noninnocence has been well-established for transition metal complexes containing diatomics such as NO and O₂, and bidentate chelates like quinones/semiquinones/catecholates, α-diimines, and α-dithiolenes and also tetrapyrrole macrocycles. The scope of noninnocent ligands is being expanded rapidly for their unique redox properties and catalytic applications. The present contribution attempts to reveal “hidden” noninnocence of molecules that are often believed to be innocent, which includes 1,3-butadiene dianion, carbodicarbene and peroxo ligand, as well as reductive noninnocence of porphyrins and corroles.

中文翻译：

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隐藏的配体非纯净：结合光谱和计算角度

配体非纯已经很好地用于包含双原子（如NO和O ₂）以及双齿螯合物（如醌/半醌/儿茶酚酯，α-二亚胺和α-二硫代烯）以及四吡咯大环的过渡金属络合物。非纯配体的范围因其独特的氧化还原特性和催化应用而迅速扩大。本贡献试图揭示通常被认为是无辜的分子的“隐藏”非清白，包括1，3-丁二烯二价阴离子，碳二碳烯和过氧配体，以及卟啉和花椰油的还原性清白。