Proton-Induced, Reversible Interconversion of a μ-1,2-Peroxo and a μ-1,1-Hydroperoxo Dicopper(II) Complex.
Publication type: Journal Article
Publication date: 2015-06-19
scimago Q1
wos Q1
SJR: 5.554
CiteScore: 22.5
Impact factor: 15.6
ISSN: 00027863, 15205126
PubMed ID:
26061290
General Chemistry
Catalysis
Biochemistry
Colloid and Surface Chemistry
Abstract
The μ-1,2-peroxo dicopper(II) complex (2) of a compartmental bis(tetradentate) pyrazolate-based ligand is shown to convert, upon protonation, to the corresponding μ-1,1-hydroperoxo dicopper(II) complex (3). The transformation is cleanly reversed with base, and an apparent pK(a) = 22.2 ± 0.3 for the Cu2OOH unit in MeCN has been determined. The unprecedented stability of 3 (t(1/2) = 9 h in nitrile solvents at room temperature, giving the hydroxo-bridged dicopper complex) has allowed for its structural characterization by X-ray diffraction. While the O-O bond length (1.462(3) Å) barely changes upon protonation from 2 to 3, the O-O stretching frequency is much higher in the hydroperoxo complex 3 (860 cm(-1)). 3 mediates 2e(-) oxo transfer to the nucleophilic substrate PPh3 but is not activated for H-atom abstraction.
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Total citations:
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Citations from 2025:
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(9.76%)
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Kindermann N. et al. Proton-Induced, Reversible Interconversion of a μ-1,2-Peroxo and a μ-1,1-Hydroperoxo Dicopper(II) Complex. // Journal of the American Chemical Society. 2015. Vol. 137. No. 25. pp. 8002-8005.
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Kindermann N., Dechert S., Demeshko S., Meyer F. Proton-Induced, Reversible Interconversion of a μ-1,2-Peroxo and a μ-1,1-Hydroperoxo Dicopper(II) Complex. // Journal of the American Chemical Society. 2015. Vol. 137. No. 25. pp. 8002-8005.
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RIS
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TY - JOUR
DO - 10.1021/jacs.5b04361
UR - https://doi.org/10.1021/jacs.5b04361
TI - Proton-Induced, Reversible Interconversion of a μ-1,2-Peroxo and a μ-1,1-Hydroperoxo Dicopper(II) Complex.
T2 - Journal of the American Chemical Society
AU - Kindermann, Nicole
AU - Dechert, Sebastian
AU - Demeshko, Serhiy
AU - Meyer, Franc
PY - 2015
DA - 2015/06/19
PB - American Chemical Society (ACS)
SP - 8002-8005
IS - 25
VL - 137
PMID - 26061290
SN - 0002-7863
SN - 1520-5126
ER -
Cite this
BibTex (up to 50 authors)
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@article{2015_Kindermann,
author = {Nicole Kindermann and Sebastian Dechert and Serhiy Demeshko and Franc Meyer},
title = {Proton-Induced, Reversible Interconversion of a μ-1,2-Peroxo and a μ-1,1-Hydroperoxo Dicopper(II) Complex.},
journal = {Journal of the American Chemical Society},
year = {2015},
volume = {137},
publisher = {American Chemical Society (ACS)},
month = {jun},
url = {https://doi.org/10.1021/jacs.5b04361},
number = {25},
pages = {8002--8005},
doi = {10.1021/jacs.5b04361}
}
Cite this
MLA
Copy
Kindermann, Nicole, et al. “Proton-Induced, Reversible Interconversion of a μ-1,2-Peroxo and a μ-1,1-Hydroperoxo Dicopper(II) Complex..” Journal of the American Chemical Society, vol. 137, no. 25, Jun. 2015, pp. 8002-8005. https://doi.org/10.1021/jacs.5b04361.