Copper(I)-dioxygen reactivity in a sterically demanding tripodal tetradentate tren ligand: Formation and reactivity of a mononuclear copper(II) end-on superoxo complex

Yuki Kobayashi; Kei Ohkubo; Takashi Nomura; Minoru Kubo; Nobutaka Fujieda; Hideki Sugimoto; Shunichi Fukuzumi; Kei Goto; Takashi Ogura; Shinobu Itoh

doi:10.1002/ejic.201200177

Copper(I)-dioxygen reactivity in a sterically demanding tripodal tetradentate tren ligand: Formation and reactivity of a mononuclear copper(II) end-on superoxo complex

Yuki Kobayashi
, Kei Ohkubo
, Takashi Nomura
, Minoru Kubo
, Nobutaka Fujieda
, Hideki Sugimoto
, Shunichi Fukuzumi
, Kei Goto
, Takashi Ogura
, Shinobu Itoh

Department of Chemistry & Nanoscience

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

44 Scopus citations

Abstract

Reaction of a copper(I) complex supported by a sterically demanding tripodal tetradentate ligand, HIPT₃tren, and O₂ gave a mononuclear copper(II) end-on superoxo complex. Spectroscopic (UV/Vis, resonance Raman, ESR, and ¹H-NMR) and DFT studies have been performed. The O₂-binding process as well as the reaction toward external substrates have been investigated kinetically to demonstrate the unique behavior of the copper(II) end-on superoxo complex, which may occur as a result of the existence of the hydrophobic core around the copper coordination sphere created by the HIPT₃tren ligand.

Original language	English
Pages (from-to)	4574-4578
Number of pages	5
Journal	European Journal of Inorganic Chemistry
Issue number	29
DOIs	https://doi.org/10.1002/ejic.201200177
State	Published - Oct 2012

Keywords

Copper
Dioxygen activation
Enzyme models
Kinetics
Superoxide

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10.1002/ejic.201200177

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Kobayashi, Y., Ohkubo, K., Nomura, T., Kubo, M., Fujieda, N., Sugimoto, H., Fukuzumi, S., Goto, K., Ogura, T., & Itoh, S. (2012). Copper(I)-dioxygen reactivity in a sterically demanding tripodal tetradentate tren ligand: Formation and reactivity of a mononuclear copper(II) end-on superoxo complex. European Journal of Inorganic Chemistry, (29), 4574-4578. https://doi.org/10.1002/ejic.201200177

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title = "Copper(I)-dioxygen reactivity in a sterically demanding tripodal tetradentate tren ligand: Formation and reactivity of a mononuclear copper(II) end-on superoxo complex",

abstract = "Reaction of a copper(I) complex supported by a sterically demanding tripodal tetradentate ligand, HIPT3tren, and O2 gave a mononuclear copper(II) end-on superoxo complex. Spectroscopic (UV/Vis, resonance Raman, ESR, and 1H-NMR) and DFT studies have been performed. The O2-binding process as well as the reaction toward external substrates have been investigated kinetically to demonstrate the unique behavior of the copper(II) end-on superoxo complex, which may occur as a result of the existence of the hydrophobic core around the copper coordination sphere created by the HIPT3tren ligand.",

keywords = "Copper, Dioxygen activation, Enzyme models, Kinetics, Superoxide",

author = "Yuki Kobayashi and Kei Ohkubo and Takashi Nomura and Minoru Kubo and Nobutaka Fujieda and Hideki Sugimoto and Shunichi Fukuzumi and Kei Goto and Takashi Ogura and Shinobu Itoh",

year = "2012",

month = oct,

doi = "10.1002/ejic.201200177",

language = "English",

pages = "4574--4578",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

publisher = "Wiley-VCH Verlag",

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Kobayashi, Y, Ohkubo, K, Nomura, T, Kubo, M, Fujieda, N, Sugimoto, H, Fukuzumi, S, Goto, K, Ogura, T & Itoh, S 2012, 'Copper(I)-dioxygen reactivity in a sterically demanding tripodal tetradentate tren ligand: Formation and reactivity of a mononuclear copper(II) end-on superoxo complex', European Journal of Inorganic Chemistry, no. 29, pp. 4574-4578. https://doi.org/10.1002/ejic.201200177

TY - JOUR

T1 - Copper(I)-dioxygen reactivity in a sterically demanding tripodal tetradentate tren ligand

T2 - Formation and reactivity of a mononuclear copper(II) end-on superoxo complex

AU - Kobayashi, Yuki

AU - Ohkubo, Kei

AU - Nomura, Takashi

AU - Kubo, Minoru

AU - Fujieda, Nobutaka

AU - Sugimoto, Hideki

AU - Fukuzumi, Shunichi

AU - Goto, Kei

AU - Ogura, Takashi

AU - Itoh, Shinobu

PY - 2012/10

Y1 - 2012/10

N2 - Reaction of a copper(I) complex supported by a sterically demanding tripodal tetradentate ligand, HIPT3tren, and O2 gave a mononuclear copper(II) end-on superoxo complex. Spectroscopic (UV/Vis, resonance Raman, ESR, and 1H-NMR) and DFT studies have been performed. The O2-binding process as well as the reaction toward external substrates have been investigated kinetically to demonstrate the unique behavior of the copper(II) end-on superoxo complex, which may occur as a result of the existence of the hydrophobic core around the copper coordination sphere created by the HIPT3tren ligand.

AB - Reaction of a copper(I) complex supported by a sterically demanding tripodal tetradentate ligand, HIPT3tren, and O2 gave a mononuclear copper(II) end-on superoxo complex. Spectroscopic (UV/Vis, resonance Raman, ESR, and 1H-NMR) and DFT studies have been performed. The O2-binding process as well as the reaction toward external substrates have been investigated kinetically to demonstrate the unique behavior of the copper(II) end-on superoxo complex, which may occur as a result of the existence of the hydrophobic core around the copper coordination sphere created by the HIPT3tren ligand.

KW - Copper

KW - Dioxygen activation

KW - Enzyme models

KW - Kinetics

KW - Superoxide

UR - https://www.scopus.com/pages/publications/84867055701

U2 - 10.1002/ejic.201200177

DO - 10.1002/ejic.201200177

M3 - Article

AN - SCOPUS:84867055701

SN - 1434-1948

SP - 4574

EP - 4578

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 29

ER -

Copper(I)-dioxygen reactivity in a sterically demanding tripodal tetradentate tren ligand: Formation and reactivity of a mononuclear copper(II) end-on superoxo complex

Abstract

Keywords

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