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

doi:10.1039/c2dt32413j

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

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

25 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 [Cu^II(L^3-)]^- (L^3-, fully deprotonated tri-anionic form) as well as the one-electron and two-electron oxidised complexes, [Cu^II(L^̇2-)] and [Cu ^II(L^-)]⁺, have been examined in detail. The two-electron oxidised form [Cu^II(L^-)]⁺ exhibited hydrogen atom abstraction ability from 1,4-cyclohexadiene (CHD), whereas the one-electron oxidised form Cu^II(L^̇2-)] was found to disproportionate into [Cu^II(L^3-)]^- and [Cu^II(L^-)]⁺ during the course of the reaction with CHD.

Original language	English
Pages (from-to)	2438-2444
Number of pages	7
Journal	Dalton Transactions
Volume	42
Issue number	7
DOIs	https://doi.org/10.1039/c2dt32413j
State	Published - 21 Feb 2013

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title = "Copper complexes of the non-innocent β-diketiminate ligand containing phenol groups",

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({\.L}2-)] 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({\.L}2-)] was found to disproportionate into [CuII(L3-)]- and [CuII(L-)]+ during the course of the reaction with CHD.",

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

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doi = "10.1039/c2dt32413j",

language = "English",

volume = "42",

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journal = "Dalton Transactions",

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TY - JOUR

T1 - Copper complexes of the non-innocent β-diketiminate ligand containing phenol groups

AU - Takaichi, June

AU - Ohkubo, Kei

AU - Sugimoto, Hideki

AU - Nakano, Motohiro

AU - Usa, Daisuke

AU - Maekawa, Hiroaki

AU - Fujieda, Nobutaka

AU - Nishiwaki, Nagatoshi

AU - Seki, Shu

AU - Fukuzumi, Shunichi

AU - Itoh, Shinobu

PY - 2013/2/21

Y1 - 2013/2/21

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84872723349

U2 - 10.1039/c2dt32413j

DO - 10.1039/c2dt32413j

M3 - Article

C2 - 23211930

AN - SCOPUS:84872723349

SN - 1477-9226

VL - 42

SP - 2438

EP - 2444

JO - Dalton Transactions

JF - Dalton Transactions

IS - 7

ER -

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

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