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Copper(I)‐Dioxygen Reactivity in a Sterically Demanding Tripodal Tetradentate tren Ligand: Formation and Reactivity of a Mononuclear Copper(II) End‐On Superoxo Complex
Author(s) -
Kobayashi Yuki,
Ohkubo Kei,
Nomura Takashi,
Kubo Minoru,
Fujieda Nobutaka,
Sugimoto Hideki,
Fukuzumi Shunichi,
Goto Kei,
Ogura Takashi,
Itoh Shinobu
Publication year - 2012
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201200177
Subject(s) - chemistry , steric effects , reactivity (psychology) , copper , ligand (biochemistry) , coordination sphere , photochemistry , polymer chemistry , stereochemistry , molecule , organic chemistry , receptor , medicine , biochemistry , alternative medicine , pathology
Reaction of a copper(I) complex supported by a sterically demanding tripodal tetradentate ligand, HIPT 3 tren, and O 2 gave a mononuclear copper(II) end‐on superoxo complex. Spectroscopic (UV/Vis, resonance Raman, ESR, and 1 H‐NMR) and DFT studies have been performed. The O 2 ‐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 HIPT 3 tren ligand.