Investigating reactivity and electronic structure of copper(II)-polypyridyl complexes and hydrogen peroxide
Investigating reactivity and electronic structure of copper(II)-polypyridyl complexes and hydrogen peroxide
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研究铜(II)-聚吡啶配合物和过氧化氢的反应活性和电子结构
DOI:
10.1016/j.ica.2020.120168
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发表时间:
2021
影响因子:
2.8
通讯作者:
Mukherjee, Anusree
中科院分区:
文献类型:
--
作者:
Khazanov, Thomas M.;Botcha, Niharika Krishna;Yergeshbayeva, Sandugash;Shatruk, Michael;Mukherjee, Anusree
This work presents a detailed study of the reactivity of three mononuclear CuIIcomplexes supported by derivatives of the tetradentate ligand N,N'-bis(2-pyridylmethyl)-1,2-ethylenediamine (bispicen). The CuIIcomplexes are capable of performing Csingle bondH bond activation in the presence of NEt3and H2O2through what has been proposed computationally to be a [CuO]+intermediate. A wavefunction-based quantum chemical investigation into the electronic structure of the proposed [CuO]+intermediate reveals a triplet ground state predominantly consistent with an S = ½ CuIIcenter ferromagnetically coupled to an oxyl radical, though contributions from the corresponding biradicaloid CuI-oxene resonance structure may be nontrivial. Furthermore, correlation of the electronic structure of the proposed intermediate with analogous high-valent metal-oxo species capable of olefin epoxidation suggests that the CuIIcomplexes might be also capable of olefin epoxidation in the presence of NEt3and H2O2. To test this hypothesis experimentally, the CuIIcomplexes are treated with NEt3and H2O2in the presence of alkene substrates, resulting in the formation of epoxides.
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DOI:
10.1002/anie.201708977
发表时间:
2018-01-02
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Cao L;Caldararu O;Rosenzweig AC;Ryde U
通讯作者:
Ryde U
影响因子:
62.1
作者:
Elwell CE;Gagnon NL;Neisen BD;Dhar D;Spaeth AD;Yee GM;Tolman WB
通讯作者:
Tolman WB
影响因子:
4.6
作者:
D. Ricciarelli;Q. Phung;L. Belpassi;J. Harvey;P. Belanzoni
通讯作者:
D. Ricciarelli;Q. Phung;L. Belpassi;J. Harvey;P. Belanzoni
影响因子:
15
作者:
Zaragoza JPT;Yosca TH;Siegler MA;Moënne-Loccoz P;Green MT;Goldberg DP
通讯作者:
Goldberg DP
影响因子:
2.8
作者:
Bruce J. Pella;J. Niklas;O. Poluektov;Anusree Mukherjee
通讯作者:
Anusree Mukherjee