Isolating the Effects of the Proton Tunneling Distance on Proton-Coupled Electron Transfer in a Series of Homologous Tyrosine-Base Model Compounds

Autor: Sascha Ott, Starla D. Glover, Todd F. Markle, Leif Hammarström, Giovanny A. Parada

Publikováno v: Journal of the American Chemical Society. 139:2090-2101

The distance dependence of concerted proton-coupled electron transfer (PCET) reactions was probed in a series of three new compounds, where a phenol is covalently bridged by a 5, 6, or 7 membered carbocycle to the quinoline. The carbocycle bridge enf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f82513a4f40f4e58e28654a2042d9d5
https://doi.org/10.1021/jacs.6b12531

Control over Excited State Intramolecular Proton Transfer and Photoinduced Tautomerization: Influence of the Hydrogen-Bond Geometry

Autor: Giovanny A. Parada, Sascha Ott, Todd F. Markle, Burkhard Zietz, Leif Hammarström, Starla D. Glover

Publikováno v: Chemistry - A European Journal. 21:6362-6366

The influence of H-bond geometry on the dynamics of excited state intramolecular proton transfer (ESIPT) and photoinduced tautomerization in a series of phenol-quinoline compounds is investigated. Control over the proton donor-acceptor distance (dDA

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f13624a8efb1148868a85a5ec4dd5863
https://doi.org/10.1002/chem.201500244

Trends in Ground-State Entropies for Transition Metal Based Hydrogen Atom Transfer Reactions

Autor: Todd F. Markle, James M. Mayer, Virginia W. Manner, Elizabeth A. Mader, James A. Franz, Adam Wu

Publikováno v: Journal of the American Chemical Society. 131:4335-4345

Reported herein are thermochemical studies of hydrogen atom transfer (HAT) reactions involving transition metal H-atom donors M(II)LH and oxyl radicals. [Fe(II)(H(2)bip)(3)](2+), [Fe(II)(H(2)bim)(3)](2+), [Co(II)(H(2)bim)(3)](2+), and Ru(II)(acac)(2)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e53406faa873097230cbd3be9a090f4c
https://doi.org/10.1021/ja8081846

Proton-Coupled Electron Transfer in a Series of Ruthenium-Linked Tyrosines with Internal Bases : Evaluation of a Tunneling Model for Experimental Temperature-Dependent Kinetics

Autor: Ming-Tian Zhang, Todd F. Markle, Linus O. Johannissen, Leif Hammarström, Marie Pierre Santoni

Publikováno v: Markle, T F, Zhang, M T, Santoni, M P, Johannissen, L O & Hammarström, L 2016, ' Proton-coupled electron transfer in a series of ruthenium-linked tyrosines with internal bases : Evaluation of a tunneling model for experimental temperature-dependent kinetics ', Journal of Physical Chemistry B, vol. 120, no. 35, pp. 9308-9321 . https://doi.org/10.1021/acs.jpcb.6b05885

Photoinitiated proton-coupled electron transfer (PCET) kinetics has been investigated in a series of four modified tyrosines linked to a ruthenium photosensitizer in acetonitrile, with each tyrosine bearing an internal hydrogen bond to a covalently l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b403efbd06cb2d793a5e07821507c8e6
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-305468

Models for Proton-coupled Electron Transfer in Photosystem II

Autor: Antonio G. DiPasquale, Frank Bartnik Larsen, Ian J. Rhile, Elizabeth A. Mader, Todd F. Markle, James M. Mayer

Publikováno v: Mayer, J M, Rhile, I J, Larsen, F B, Mader, E A, Markle, T F & DiPasquale, A G 2006, ' Models for proton-coupled electron transfer in photosystem II ', Photosynthesis Research, vol. 87, no. 1, pp. 3-20 .

The coupling of proton and electron transfers is a key part of the chemistry of photosynthesis. The oxidative side of photosystem II (PS II) in particular seems to involve a number of proton-coupled electron transfer (PCET) steps in the S-state trans

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::851afda7ec3c10cc0422ade67e47a93b
https://doi.org/10.1007/s11120-005-8164-3