Kinetic studies of tris(2,2′-bipyridine)iron(III) perchlorate with cobaloxime, [Co(dmgBF2)2(H2O)2]

Wangila, Grant W.; Jordan, R. B.

doi:10.1016/j.ica.2005.03.001

Cited by 13 publications

(14 citation statements)

References 40 publications

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“…S1d) with optical absorption profile in full agreement with the reported results [33,35], and ESI-MS with a base peak at 408.0210 corresponding to the [Co(dmgBF2)2·Na] + ion (Fig. S2).…”

Section: Interaction Between Cds and Co Coenzymesupporting

confidence: 87%

Cobaloxime coenzyme catalyzing artificial photosynthesis for hydrogen generation over CdS nanocrystals

Niu

Shen

Zhang

et al. 2016

Applied Catalysis B: Environmental

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“…S1d) with optical absorption profile in full agreement with the reported results [33,35], and ESI-MS with a base peak at 408.0210 corresponding to the [Co(dmgBF2)2·Na] + ion (Fig. S2).…”

Section: Interaction Between Cds and Co Coenzymesupporting

confidence: 87%

Cobaloxime coenzyme catalyzing artificial photosynthesis for hydrogen generation over CdS nanocrystals

Niu

Shen

Zhang

et al. 2016

Applied Catalysis B: Environmental

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“…reaches k 11 values of 10 4 –10 5 s −1 m −1 . The Marcus cross relation is also adaptable for complexes with other transition metals . The electron self‐exchange rate can also be obtained by using NMR line‐broadening .…”

Section: Introductionmentioning

confidence: 99%

Copper Guanidinoquinoline Complexes as Entatic State Models of Electron‐Transfer Proteins

Stanek

Sackers

Fink

et al. 2017

Chemistry A European J

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The electron-transfer abilities of the copper guanidinoquinoline (GUAqu) complexes [Cu(TMGqu) ] and [Cu(DMEGqu) ] (TMGqu=tetramethylguanidinoquinoline, DMEGqu=dimethylethylguanidinoquinoline) were examined in different solvents. The determination of the electron self-exchange rate based on the Marcus theory reveals the highest electron-transfer rate of copper complexes with pure N-donor ligands (k =1.2×10 s m in propionitrile). This is supported by an examination of the reorganisation energy of the complexes by using Eyring theory and DFT calculations. The low reorganisation energies in nitrile solvents correspond with the high electron-transfer rates of the complexes. Therefore, the [Cu(GUAqu) ] complexes act as good entatic states model of copper enzymes. The structural influence of the complexes on the kinetic parameters shows that the TMGqu system possesses a higher electron-transfer rate than DMEGqu. Supporting DFT calculations give a closer insight into the kinetics and thermodynamics (Nelsen's four-point method and isodesmic reactions) of the electron transfer.

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“…The molecular cobaloxime catalyst was chosen since they are among the best transition metal complexes known for H 2 production, tolerant to oxygen, 16 readily synthesized, 17,18 and composed of earth-abundant elements. In this study, we have anchored the cobaloxime catalyst molecules to the surface of CdSe/ZnS QD via a phosphonate linkage 19 (Figure 1a inset).…”

mentioning

confidence: 99%

Photodriven Charge Separation Dynamics in CdSe/ZnS Core/Shell Quantum Dot/Cobaloxime Hybrid for Efficient Hydrogen Production

et al. 2012

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Photodriven charge-transfer dynamics and catalytic properties have been investigated for a hybrid system containing CdSe/ZnS core/shell quantum dots (QDs) and surface-bound molecular cobaloxime catalysts. The electron transfer from light-excited QDs to cobaloxime, revealed by optical transient absorption spectroscopy, takes place with an average time constant of 105 ps, followed a much slower charge recombination process with a time constant of ≫3 ns. More interestingly, we also observed photocatalytic hydrogen generation by this QD/cobaloxime hybrid system, with >10,000 turnovers of H(2) per QD in 10 h, using triethanolamine as a sacrificial electron donor. These results suggest that QD/cobaloxime hybrids succeed in coupling single-photon events with multielectron redox catalytic reactions, and such systems could have potential applications in long-lived artificial photosynthetic devices for fuel generation from sunlight.

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Kinetic studies of tris(2,2′-bipyridine)iron(III) perchlorate with cobaloxime, [Co(dmgBF2)2(H2O)2]

Cited by 13 publications

References 40 publications

Cobaloxime coenzyme catalyzing artificial photosynthesis for hydrogen generation over CdS nanocrystals

Cobaloxime coenzyme catalyzing artificial photosynthesis for hydrogen generation over CdS nanocrystals

Copper Guanidinoquinoline Complexes as Entatic State Models of Electron‐Transfer Proteins

Photodriven Charge Separation Dynamics in CdSe/ZnS Core/Shell Quantum Dot/Cobaloxime Hybrid for Efficient Hydrogen Production

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