Copper complexes of the non-innocent β-diketiminate ligand containing phenol groups

June Takaichi, Kei Ohkubo, Hideki Sugimoto, Motohiro Nakano, Daisuke Usa, Hiroaki Maekawa, Nobutaka Fujieda, Nagatoshi Nishiwaki, Shu Seki, Shunichi Fukuzumi, Shinobu Itoh

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

A new type of non-innocent β-diketiminate ligand having redox active phenol groups (LH3, fully protonated form) has been developed, and the structure, physical properties and reactivity of the supported copper(ii) complex [CuII(L3-)]- (L3-, fully deprotonated tri-anionic form) as well as the one-electron and two-electron oxidised complexes, [CuII(L̇2-)] and [Cu II(L-)]+, have been examined in detail. The two-electron oxidised form [CuII(L-)]+ exhibited hydrogen atom abstraction ability from 1,4-cyclohexadiene (CHD), whereas the one-electron oxidised form CuII(L̇2-)] was found to disproportionate into [CuII(L3-)]- and [CuII(L-)]+ during the course of the reaction with CHD.

Original languageEnglish
Pages (from-to)2438-2444
Number of pages7
JournalDalton Transactions
Volume42
Issue number7
DOIs
StatePublished - 21 Feb 2013

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