Redox-Switchable Complexes Based on Nanographene-NHCs

被引：4

作者：

Ruiz-Zambrana, Cesar ^{[1
]}

Dubey, Rajeev K. ^{[2
]}

Poyatos, Macarena ^{[1
]}

Mateo-Alonso, Aurelio ^{[2
,3
]}

Peris, Eduardo ^{[1
]}

机构：

[1] Univ Jaume 1, Ctr Innovac Quim Avanzada ORFEO CINQA, Inst Adv Mat INAM, Av Vicente Sos Baynat S-N, Castellon de La Plana 12071, Spain

[2] Univ Basque Country, UPV EHU, POLYMAT, Ave Tolosa 72, Donostia San Sebastian 20018, Spain

[3] Basque Fdn Sci, Ikerbasque, Bilbao 48009, Spain

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2022年 / 28卷 / 44期

基金：

欧洲研究理事会;

关键词：

mechanism; nanographene; N-heterocyclic carbene; redox-switchable; cycloaddition; N-HETEROCYCLIC CARBENE; NON-INNOCENT LIGANDS; ELECTRONIC-PROPERTIES; IRIDIUM; COORDINATION; RHODIUM; MECHANISM; CYCLOPROPENONES; REACTIVITY; RUTHENIUM;

D O I：

10.1002/chem.202201384

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of rhodium and iridium complexes with a N-heterocyclic carbene (NHC) ligand decorated with a perylene-diimide-pyrene moiety are described. Electrochemical studies reveal that the complexes can undergo two successive one-electron reduction events, associated to the reduction of the PDI moiety attached to the NHC ligand. The reduction of the ligand produces a significant increase on its electron-donating character, as observed from the infrared spectroelectrochemical studies. The rhodium complex was tested in the [3+2] cycloaddition of diphenylcyclopropenone and methylphenylacetylene, where it displayed a redox-switchable behavior. The neutral complex showed moderate activity, which was suppressed when the catalyst was reduced.

引用

页数：8

共 86 条

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