Nalazite se na CroRIS probnoj okolini. Ovdje evidentirani podaci neće biti pohranjeni u Informacijskom sustavu znanosti RH. Ako je ovo greška, CroRIS produkcijskoj okolini moguće je pristupi putem poveznice www.croris.hr
izvor podataka: crosbi

Kinetic isotope effects and hydrogen tunnelling in PCET oxidations of ascorbate: new insights into aqueous chemistry? (CROSBI ID 276833)

Prilog u časopisu | pregledni rad (znanstveni) | međunarodna recenzija

Karković Marković, Ana ; Jakobušić Brala, Cvijeta ; Pilepić, Viktor ; Uršić, Stanko Kinetic isotope effects and hydrogen tunnelling in PCET oxidations of ascorbate: new insights into aqueous chemistry? // Molecules, 25 (2020), 6; 1443, 16. doi: 10.3390/molecules25061443

Podaci o odgovornosti

Karković Marković, Ana ; Jakobušić Brala, Cvijeta ; Pilepić, Viktor ; Uršić, Stanko

engleski

Kinetic isotope effects and hydrogen tunnelling in PCET oxidations of ascorbate: new insights into aqueous chemistry?

Recent experimental studies of kinetic isotope e ects (KIE-s) and hydrogen tunnelling comprising three proton-coupled electron transfer (PCET) oxidations of ascorbate monoanion, (a) in aqueous reaction solutions, (b) in the mixed water-organic cosolvent systems, (c) in aqueous solutions of various salts and (d) in fairly diluted aqueous solutions of the various partial hydrophobes are reviewed. A number of new insights into the wealth of the kinetic isotope phenomena in the PCET reactions have been obtained. The modulation of KIE-s and hydrogen tunnelling observed when partially hydrophobic solutes are added into water reaction solution, in the case of fairly diluted solutions is revealed as the strong linear correlation of the isotopic ratios of the Arrhenius prefactors Ah/Ad and the isotopic di erences in activation energies DEa (D, H). The observation has been proposed to be a signature of the involvement of the collective intermolecular excitonic vibrational dynamics of water in activation processes and aqueous chemistry.

kinetic isotope effects ; ascorbate PCET reactions ; hydrogen tunnelling ; water vibrational dynamics ; activation processes

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

25 (6)

2020.

1443

16

objavljeno

1420-3049

10.3390/molecules25061443

Trošak objave rada u otvorenom pristupu

Povezanost rada

Kemija

Poveznice
Indeksiranost