Cr-亚氨基氧化还原系列的合成与电子结构研究。
Synthesis and electronic structure studies of a Cr-imido redox series.
机构信息
Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA.
出版信息
Chem Commun (Camb). 2020 Mar 12;56(21):3163-3166. doi: 10.1039/d0cc00108b.
Abstract
The effect of metal identity, d-electron count, and coordination geometry on the electronic structure of a metal-ligand multiple bond (MLMB) is an area of active exploration. Although high oxidation state Cr imidos have been extensively studied, very few reports on low-valent Cr imidos or the interconversion of redox isomers exist. Herein, we report the synthesis and characterization of a family of dipyrrinato Cr imido complexes in oxidation states ranging from CrIII to CrV, showcasing the influence of the weak-field dipyrromethene scaffold on the electronic structure and coordination geometries of these Cr imides.
摘要
金属配体多重键（MLMB）中金属的特性、d 电子数和配位几何形状对其电子结构的影响是当前活跃的研究领域。尽管高氧化态的铬亚胺得到了广泛的研究，但关于低价铬亚胺或氧化还原异构体的相互转化的报道却很少。在此，我们报道了一系列氧化态为 CrIII 至 CrV 的二吡咯甲烷铬亚胺配合物的合成与表征，展示了弱场二吡咯甲烷骨架对这些铬亚胺电子结构和配位几何形状的影响。
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