Bimetallic cooperative effect on O–O bond formation: copper polypyridyl complexes as water oxidation catalyst

2018 ◽  
Vol 47 (26) ◽  
pp. 8670-8675 ◽  
Author(s):  
Xiao-Jun Su ◽  
Chu Zheng ◽  
Qin-Qin Hu ◽  
Hao-Yi Du ◽  
Rong-Zhen Liao ◽  
...  
Keyword(s):  
Copper Complex ◽  
Water Oxidation ◽  
Bond Formation ◽  
Catalytic Efficiency ◽  
Cooperative Effect ◽  
Oxidation Catalyst ◽  
Binuclear Copper ◽  
Polypyridyl Complexes ◽  
Binuclear Copper Complex ◽  
Better Than

Two is better than one. The bimetallic cooperation in a binuclear copper complex, compared with the corresponding mononuclear catalyst, can decrease the catalytic overpotential and improve the catalytic efficiency.

μ-Pyridine-bridged copper complex with robust proton-reducing ability

2017 ◽  
Vol 46 (43) ◽  
pp. 14869-14879 ◽  
Author(s):  
Karunamay Majee ◽  
Jully Patel ◽  
Babulal Das ◽  
Sumanta Kumar Padhi
Keyword(s):  
Copper Complex ◽  
Binuclear Copper ◽  
Proton Reduction ◽  
Reducing Ability ◽  
Binuclear Copper Complex ◽  
Catalytic Behaviour

The interconversion of the binuclear copper complex [Cu(DQPD)]2 to mononuclear [Cu(DQPD)]+ has been studied and their catalytic behaviour towards proton reduction has been reported.

Cleavage of the C–S bond with the formation of a binuclear copper complex with 2-thiolato-3-phenyl-5-(pyridine-2-ylmethylene)-3,5-dihydro-4H-imidazole-4-one. A new mimic of the active site of N2O reductase

2013 ◽  
Vol 42 (18) ◽  
pp. 6290 ◽  
Author(s):  
Alexander G. Majouga ◽  
Elena K. Beloglazkina ◽  
Anna A. Moiseeva ◽  
Olga V. Shilova ◽  
Eugeniy A. Manzheliy ◽  
...  
Keyword(s):  
Copper Complex ◽  
Active Site ◽  
Binuclear Copper ◽  
Binuclear Copper Complex ◽  
N2o Reductase

ChemInform Abstract: .mu±eta.2:η2-Peroxo Binuclear Copper Complex, (Cu(HB(3,5-iPr2pz)3))2(O2).

ChemInform ◽  
1990 ◽  
Vol 21 (11) ◽  
Author(s):  
N. KITAJIMA ◽  
K. FUJISAWA ◽  
Y. MORO-OKA ◽  
K. TORIUMI
Keyword(s):  
Copper Complex ◽  
Binuclear Copper ◽  
Binuclear Copper Complex

scholarly journals Reduction of carbon dioxide to oxalate by a binuclear copper complex

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Uttam R. Pokharel ◽  
Frank R. Fronczek ◽  
Andrew W. Maverick
Keyword(s):  
Carbon Dioxide ◽  
Copper Complex ◽  
Binuclear Copper ◽  
Binuclear Copper Complex

The Mechanism of OO Bond Formation in Tanaka’s Water Oxidation Catalyst

2011 ◽  
Vol 124 (5) ◽  
pp. 1247-1250 ◽  
Author(s):  
Soumya Ghosh ◽  
Mu-Hyun Baik
Keyword(s):  
Water Oxidation ◽  
Bond Formation ◽  
Oxidation Catalyst

scholarly journals From Ru-bda to Ru-bds: a step forward to highly efficient molecular water oxidation electrocatalysts under acidic and neutral conditions

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jing Yang ◽  
Lei Wang ◽  
Shaoqi Zhan ◽  
Haiyuan Zou ◽  
Hong Chen ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Density Functional ◽  
Bond Formation ◽  
Density Functional Theory Calculations ◽  
Oxidation Catalyst ◽  
Nucleophilic Attack ◽  
Molecular Water ◽  
Formation Mechanisms ◽  
Equatorial Position ◽  
Neutral Conditions

AbstractSignificant advances during the past decades in the design and studies of Ru complexes with polypyridine ligands have led to the great development of molecular water oxidation catalysts and understanding on the O−O bond formation mechanisms. Here we report a Ru-based molecular water oxidation catalyst [Ru(bds)(pic)2] (Ru-bds; bds2− = 2,2′-bipyridine-6,6′-disulfonate) containing a tetradentate, dianionic sulfonate ligand at the equatorial position and two 4-picoline ligands at the axial positions. This Ru-bds catalyst electrochemically catalyzes water oxidation with turnover frequencies (TOF) of 160 and 12,900 s−1 under acidic and neutral conditions respectively, showing much better performance than the state-of-art Ru-bda catalyst. Density functional theory calculations reveal that (i) under acidic conditions, the high valent Ru intermediate RuV=O featuring the 7-coordination configuration is involved in the O−O bond formation step; (ii) under neutral conditions, the seven-coordinate RuIV=O triggers the O−O bond formation; (iii) in both cases, the I2M (interaction of two M−O units) pathway is dominant over the WNA (water nucleophilic attack) pathway.

Binuclear copper complex model of tyrosinase

1990 ◽  
pp. 1752-1755 ◽  
Author(s):  
Marius Réglier ◽  
Catherine Jorand ◽  
Bernard Waegell
Keyword(s):  
Copper Complex ◽  
Complex Model ◽  
Binuclear Copper ◽  
Binuclear Copper Complex
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