Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Kasper S. Kjaer"'
Autor:
Marco E. Reinhard, Michael W. Mara, Thomas Kroll, Hyeongtaek Lim, Ryan G. Hadt, Roberto Alonso-Mori, Matthieu Chollet, James M. Glownia, Silke Nelson, Dimosthenis Sokaras, Kristjan Kunnus, Tim Brandt van Driel, Robert W. Hartsock, Kasper S. Kjaer, Clemens Weninger, Elisa Biasin, Leland B. Gee, Keith O. Hodgson, Britt Hedman, Uwe Bergmann, Edward I. Solomon, Kelly J. Gaffney
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
The dissociation mechanism of the heme axial ligand in heme proteins is not yet fully understood. The authors investigate the photodissociation dynamics of the bond between heme Fe and methionine S in ferrous cytochrome c using femtosecond time-resol
Externí odkaz:
https://doaj.org/article/b36cfbe98c1e409a802196ff2da67f18
Autor:
Kristjan Kunnus, Morgane Vacher, Tobias C. B. Harlang, Kasper S. Kjær, Kristoffer Haldrup, Elisa Biasin, Tim B. van Driel, Mátyás Pápai, Pavel Chabera, Yizhu Liu, Hideyuki Tatsuno, Cornelia Timm, Erik Källman, Mickaël Delcey, Robert W. Hartsock, Marco E. Reinhard, Sergey Koroidov, Mads G. Laursen, Frederik B. Hansen, Peter Vester, Morten Christensen, Lise Sandberg, Zoltán Németh, Dorottya Sárosiné Szemes, Éva Bajnóczi, Roberto Alonso-Mori, James M. Glownia, Silke Nelson, Marcin Sikorski, Dimosthenis Sokaras, Henrik T. Lemke, Sophie E. Canton, Klaus B. Møller, Martin M. Nielsen, György Vankó, Kenneth Wärnmark, Villy Sundström, Petter Persson, Marcus Lundberg, Jens Uhlig, Kelly J. Gaffney
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Photoinduced non-adiabatic intramolecular processes have important applications but their mechanisms are challenging to explore. Here the authors detect and assign vibrational wavepacket dynamics in a Fe carbene complex by ultrafast X-ray emission sp
Externí odkaz:
https://doaj.org/article/6b31a8a42e654935b702259eb2eae14d
Coherent structural trapping through wave packet dispersion during photoinduced spin state switching
Autor:
Henrik T. Lemke, Kasper S. Kjær, Robert Hartsock, Tim B. van Driel, Matthieu Chollet, James M. Glownia, Sanghoon Song, Diling Zhu, Elisabetta Pace, Samir F. Matar, Martin M. Nielsen, Maurizio Benfatto, Kelly J. Gaffney, Eric Collet, Marco Cammarata
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Ultrafast nonadiabatic chemical dynamics during molecular photo-transformations remain challenging to describe since electronic/nuclear configurations are coupled. Here the authors use time-resolved X-ray absorption spectroscopy to probe the light-in
Externí odkaz:
https://doaj.org/article/f550e3664db64b8489fa20caa1ce88e4
Autor:
Tim B. van Driel, Kasper S. Kjær, Robert W. Hartsock, Asmus O. Dohn, Tobias Harlang, Matthieu Chollet, Morten Christensen, Wojciech Gawelda, Niels E. Henriksen, Jong Goo Kim, Kristoffer Haldrup, Kyung Hwan Kim, Hyotcherl Ihee, Jeongho Kim, Henrik Lemke, Zheng Sun, Villy Sundström, Wenkai Zhang, Diling Zhu, Klaus B. Møller, Martin M. Nielsen, Kelly J. Gaffney
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Interactions between reactive excited states of molecular photocatalysts and surrounding solvent can dictate reaction pathways, but are not readily accessible to conventional spectroscopic methods. Here the authors use diffuse X-ray scattering and th
Externí odkaz:
https://doaj.org/article/fc2761474a3545f8abc536d15c7246a2
Autor:
Kasper S. Kjær, Wenkai Zhang, Roberto Alonso-Mori, Uwe Bergmann, Matthieu Chollet, Ryan G. Hadt, Robert W. Hartsock, Tobias Harlang, Thomas Kroll, Katharina Kubiček, Henrik T. Lemke, Huiyang W. Liang, Yizhu Liu, Martin M. Nielsen, Joseph S. Robinson, Edward I. Solomon, Dimosthenis Sokaras, Tim B. van Driel, Tsu-Chien Weng, Diling Zhu, Petter Persson, Kenneth Wärnmark, Villy Sundström, Kelly J. Gaffney
Publikováno v:
Structural Dynamics, Vol 4, Iss 4, Pp 044030-044030-11 (2017)
We have used femtosecond resolution UV-visible and Kβ x-ray emission spectroscopy to characterize the electronic excited state dynamics of [Fe(bpy)2(CN)2], where bpy=2,2′-bipyridine, initiated by metal-to-ligand charge transfer (MLCT) excitation.
Externí odkaz:
https://doaj.org/article/5abc3001b7544e61a05379135a1b41f8
Autor:
Chelsea Liekhus-Schmaltz, Zachary W. Fox, Amity Andersen, Kasper S. Kjaer, Roberto Alonso-Mori, Elisa Biasin, Julia Carlstad, Matthieu Chollet, James D. Gaynor, James M. Glownia, Kiryong Hong, Thomas Kroll, Jae Hyuk Lee, Benjamin I. Poulter, Marco Reinhard, Dimosthenis Sokaras, Yu Zhang, Gilles Doumy, Anne Marie March, Stephen H. Southworth, Shaul Mukamel, Amy A. Cordones, Robert W. Schoenlein, Niranjan Govind, Munira Khalil
Publikováno v:
The Journal of Physical Chemistry Letters. 13:378-386
Quantifying charge delocalization associated with short-lived photoexcited states of molecular complexes in solution remains experimentally challenging, requiring local element specific femtosecond experimental probes of time-evolving electron transf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6561182f2217aba17dc71fccdd6ff872
https://doi.org/10.1021/acs.jpclett.1c03613
https://doi.org/10.1021/acs.jpclett.1c03613
Autor:
Peter, Vester, Katharina, Kubicek, Roberto, Alonso-Mori, Tadesse, Assefa, Elisa, Biasin, Morten, Christensen, Asmus O, Dohn, Tim B, van Driel, Andreas, Galler, Wojciech, Gawelda, Tobias C B, Harlang, Niels E, Henriksen, Kasper S, Kjær, Thomas S, Kuhlman, Zoltán, Németh, Zhangatay, Nurekeyev, Mátyás, Pápai, Jochen, Rittman, György, Vankó, Hasan, Yavas, Diana B, Zederkof, Uwe, Bergmann, Martin M, Nielsen, Klaus B, Møller, Kristoffer, Haldrup, Christian, Bressler
Publikováno v:
The Journal of chemical physics. 157(22)
We present a sub-picosecond resolved investigation of the structural solvent reorganization and geminate recombination dynamics following 400 nm two-photon excitation and photodetachment of a valence p electron from the aqueous atomic solute, I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::8f5bbae3fac30bb51a7dab576857f24b
https://pubmed.ncbi.nlm.nih.gov/36546808
https://pubmed.ncbi.nlm.nih.gov/36546808
Autor:
Peter Vester, Katharina Kubicek, Roberto Alonso-Mori, Tadesse Assefa, Elisa Biasin, Morten Christensen, Asmus O. Dohn, Tim B. van Driel, Andreas Galler, Wojciech Gawelda, Tobias C. B. Harlang, Niels E. Henriksen, Kasper S. Kjær, Thomas S. Kuhlman, Zoltán Németh, Zhangatay Nurekeyev, Mátyás Pápai, Jochen Rittman, György Vankó, Hasan Yavas, Diana B. Zederkof, Uwe Bergmann, Martin M. Nielsen, Klaus B. Møller, Kristoffer Haldrup, Christian Bressler
Publikováno v:
The Journal of Chemical Physics. 158:139903
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b027e8ab8ce378e99b01b8f4662e4bb1
https://doi.org/10.1063/5.0151289
https://doi.org/10.1063/5.0151289
Autor:
Kristjan Kunnus, Hyeongtaek Lim, Thomas Kroll, Robert W. Hartsock, Dimosthenis Sokaras, Britt Hedman, Leland B. Gee, Kelly J. Gaffney, Silke Nelson, Clemens Weninger, James M. Glownia, Michael W. Mara, Ryan G. Hadt, Elisa Biasin, Tim Brandt van Driel, Uwe Bergmann, Edward I. Solomon, Marco Reinhard, Keith O. Hodgson, Matthieu Chollet, Kasper S. Kjær, Roberto Alonso-Mori
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Nature Communications
Nature Communications
The dynamics of photodissociation and recombination in heme proteins represent an archetypical photochemical reaction widely used to understand the interplay between chemical dynamics and reaction environment. We report a study of the photodissociati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5caaefb3f747ff4fc4d9473dc120a0e3
https://doaj.org/article/b36cfbe98c1e409a802196ff2da67f18
https://doaj.org/article/b36cfbe98c1e409a802196ff2da67f18
Autor:
Dennis Nordlund, Kiryong Hong, Charles J. Titus, Kelly J. Gaffney, Kathryn Ledbetter, Kent D. Irwin, Amy A. Cordones, Sergey Koroidov, Lin Li, William B. Doriese, Galen C. O'Neil, Marco Reinhard, Joel N. Ullom, Sang Jun Lee, Daniel S. Swetz, Dale Li, Kasper S. Kjær, Kristjan Kunnus
Publikováno v:
Chemical Science
Photoinduced intramolecular electron transfer dynamics following metal-to-ligand charge-transfer (MLCT) excitation of [Fe(CN)4(2,2′-bipyridine)]2− (1), [Fe(CN)4(2,3-bis(2-pyridyl)pyrazine)]2− (2) and [Fe(CN)4(2,2′-bipyrimidine)]2− (3) were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5001f78fff01e1d7e7e1751f476b8e61
http://europepmc.org/articles/PMC8159445
http://europepmc.org/articles/PMC8159445