Kinetics of radical intermediate formation and deoxynucleotide production in 3-aminotyrosine-substituted Escherichia coli ribonucleotide reductases by Minnihan, Ellen Catherine, Seyedsayamdost, Mohammad R., Uhlin, Ulla, Stubbe, JoAnne

“…This oxidation occurs by a mechanism of long-range proton-coupled electron transfer (PCET) over 35 Å through a specific pathway of residues: Y[subscript 122]•→ W[subscript 48]→ Y[subscript 356] in β2 to Y[subscript 731]→ Y[subscript 730]→ C[subscript 439] in α2. …”
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Electrode modification by diazonium chemistry : studies on the effect of steric bulk on film thickness, and modified activated carbon cloths for energy storage by Subrata, Arnold

“…This was found to be due to a combination of the high resistance of the three-electrode cell setups used in our experiments, and the complicated proton-coupled electron transfer (PCET) reactions which AQ molecules undergo.…”
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Structural and mechanistic studies of nickel-borate thin-film oxygen evolving electrocatalysts by Bediako, Daniel Kwabena

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Surface microenvironment optimization‐ induced robust oxygen reduction for neutral zinc‐air batteries by Si Liu, Han Cheng, Jun Xia, Chun Wang, Renjie Gui, Tianpei Zhou, Hongfei Liu, Jing Peng, Nan Zhang, Wenjie Wang, Wangsheng Chu, HengAn Wu, Changzheng Wu, Yi Xie

“…In‐depth characterization proposes that remarkable performance improvement originates from optimized microenvironment, which increases the surface chemical potential gradient and facilitates proton coupled electron transfer during ORR. We anticipated that such synergetic optimization of microenvironment and intrinsic activity of active sites is an effective strategy which may be extended to the catalytic reactions beyond ORR. …”
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Equilibration of Tyrosyl Radicals (Y[• over 356], Y[• over 731], Y[• over 730]) in the Radical Propagation Pathway of the Escherichia coli Class Ia Ribonucleotide Reductase by Yokoyama, Kenichi, Smith, Albert A., Stubbe, JoAnne, Corzilius, Bjorn, Griffin, Robert Guy

“…Each turnover requires reversible long-range proton-coupled electron transfer (PCET) over 35 Å between the two subunits by a specific pathway (Y• over 122] [arrows facing left and right] [W[subscript 48]?] …”
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Electronic Structure of Tyrosyl D Radical of Photosystem II, as Revealed by 2D-Hyperfine Sublevel Correlation Spectroscopy by Maria Chrysina, Georgia Zahariou, Nikolaos Ioannidis, Yiannis Sanakis, George Mitrikas

“…Two tyrosine residues D1-Tyr161 (Y<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mi mathvariant="normal">Z</mi></msub></semantics></math></inline-formula>) and D2-Tyr160 (Y<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mi mathvariant="normal">D</mi></msub></semantics></math></inline-formula>) are symmetrically placed in the two core subunits D1 and D2 and participate in proton coupled electron transfer reactions. Y<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mi mathvariant="normal">Z</mi></msub></semantics></math></inline-formula> of PSII is near the OEC and mediates electron coupled proton transfer from Mn<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>4</mn></msub></semantics></math></inline-formula>Ca to the photooxidizable chlorophyll species P<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msubsup><mrow></mrow><mrow><mn>680</mn></mrow><mo>+</mo></msubsup></semantics></math></inline-formula>. …”
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Hydrogenations without Hydrogen: Titania Photocatalyzed Reductions of Maleimides and Aldehydes by David W. Manley, Luca Buzzetti, Andrew MacKessack-Leitch, John C. Walton

“…A mechanism is proposed which involves two proton-coupled electron transfers to the substrates at the titania surface.…”
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Prooxidative Potential of Photo-Irradiated Aqueous Extracts of Grape Pomace, a Recyclable Resource from Winemaking Process. by Mana Tsukada, Takuji Nakashima, Toshiaki Kamachi, Yoshimi Niwano

“…That is, reduction of dissolved oxygen by proton-coupled electron transferred from the photo-oxidized phenolic hydroxyl group would form H2O2. …”
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Atomic Ensemble Effects and Non-Covalent Interactions at the Electrode–Electrolyte Interface by Angel Cuesta

“…This simple model can also explain the occurrence of super-Nernstian shifts of the equilibrium potential of interfacial proton-coupled electron transfers. Therefore, the model can be generally applied to explain quantitatively the effect of cations on the properties of the electrical double layer. …”
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