Selective oxidation of benzyl alcohol to benzaldehyde, 1‐phenylethanol to acetophenone and fluorene to fluorenol catalysed by iron (II) complexes supported by pincer‐type ligands: Studies on rapid degradation of organic dyes
作者:Ovender Singh、Priyanka Gupta、Anshu Singh、Ankur Maji、Udai P. Singh、Kaushik Ghosh
DOI:10.1002/aoc.4825
日期:2019.5
Hexacoordinated non‐heme iron complexes [FeII(L1)2](ClO4)2 (1) and [FeII(L2)2](PF6)2 (2) have been synthesized using ligands L1 = (E)‐2‐chloro‐6‐(2‐(pyridin‐2ylmethylene) hydrazinyl)pyridine and L2 = (E)‐2‐chloro‐6‐(2‐(1‐(pyridin‐2‐yl)ethylidene)hydrazinyl) pyridine]. These complexes are highly active non‐heme iron catalysts to catalyze the C (sp3)−H bonds of alkanes. These iron complexes have been
六配位非血红素铁配合物[Fe II(L 1)2 ](ClO 4)2(1)和[Fe II(L 2)2 ](PF 6)2(2)已使用配体L 1 =( E)-2-氯-6-(2-(吡啶-2-基亚甲基)肼基)吡啶和L 2 =(E)-2-氯-6-(2-(1-(吡啶-2-基)亚乙基)肼基)吡啶]。这些络合物是高活性的非血红素铁催化剂,可催化C(sp 3)-烷烃的H键。这些铁配合物已使用ESI-MS分析进行了表征,并通过X射线晶体学确定了分子结构。ESI-MS分析还有助于理解中间物种的生成,例如Fe III -OOH和Fe IV = O。DFT和TD-DFT计算表明,氧化反应是通过高价铁中心进行的,并提出了可能的反应机理。这些配合物还用于降解橙色II和亚甲基蓝染料。