Structural dynamics probed by X-ray pulses from synchrotrons and XFELs

Autor: Friedrich Schotte, Hyotcherl Ihee, Dmitry Khakhulin, Savo Bratos, Matteo Levantino, Anton Plech, Victoria Kabanova, Marco Cammarata, Qingyu Kong, Michael Wulff, Philip A. Anfinrud

Publikováno v: Comptes rendus physique, 22 (S2), 75-94

This review focuses on how short X-ray pulses from synchrotrons and XFELs can be used to track light-induced structural changes in molecular complexes and proteins via the pump–probe method. The upgrade of the European Synchrotron Radiation Facilit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a78583adcc0740db32c767a782733809

Initial metal–metal bond breakage detected by fs X-ray scattering in the photolysis of Ru 3 (CO) 12 in cyclohexane at 400 nm

Autor: Kelly J. Gaffney, T. van Driel, Kristoffer Haldrup, Martin Nielsen, Savo Bratos, Kasper S. Kjær, Dmitry Khakhulin, Elisa Biasin, Michael Wulff, Victoria Kabanova, M. H. J. Koch, Qingyu Kong, Mads G. Laursen, Rodolphe Vuilleumier, Tsu-Chien Weng

Publikováno v: Photochemical & Photobiological Sciences
Kong, Q Y, Laursen, M G, Haldrup, K, Kjær, K S, Khakhulin, D, Biasin, E, van Driel, T B, Wulff, M, Kabanova, V, Vuilleumier, R, Bratos, S, Nielsen, M M, Gaffney, K J, Weng, T C & Koch, M H J 2019, ' Initial metal-metal bond breakage detected by fs X-ray scattering in the photolysis of Ru 3 (CO) 12 in cyclohexane at 400 nm ', Photochemical & Photobiological Sciences, vol. 18, no. 2, pp. 319-327 . https://doi.org/10.1039/c8pp00420j

Using femtosecond resolution X-ray solution scattering at a free electron laser we were able to directly observe metal-metal bond cleavage upon photolysis at 400 nm of Ru3(CO)12, a prototype for the photochemistry of transition metal carbonyls. This

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34565fe1971bf2fc4b636fee07f9288c

Ultrafast chemical kinetics: Elementary chemical act

Autor: Qingyu Kong, J.-Cl. Leicknam, Savo Bratos, Michael Wulff

Publikováno v: Chemical Physics Letters. 619:88-91

Predictions of the classical theory of chemical reaction rates are compared with experimental results obtained by ultrafast time-resolved X-ray diffraction techniques. Our analysis is illustrated with the reaction I + I = I 2 in solution at times imm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba8e4878626168564caaf33142737825
https://doi.org/10.1016/j.cplett.2014.11.055

Structure of hydrogen bonds in liquid water at subpicosecond time scales

Autor: Stanislas Pommeret, Jean-Claude Leicknam, Savo Bratos

Publikováno v: Journal of Molecular Structure. 976:270-273

A theory is presented showing how infrared pump–probe spectroscopy can be used to measure subpicosecond variations of the oxygen–oxygen distribution function in liquid water, Δ g OO ( R , t ). For times t > t c , where t c > 100 − 200 fs is th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::41b1afff86f65c494ef5c3d487a3d2fe
https://doi.org/10.1016/j.molstruc.2010.04.004

Ultrafast X-ray Diffraction of Transient Molecular Structures in Solution

Autor: Michael Wulff, Tae Kyu Kim, Maciej Lorenc, Marco Cammarata, Savo Bratos, Qin Y. Kong, Hyotcherl Ihee, Jae Hyuk Lee

Publikováno v: Science. 309:1223-1227

We report direct structural evidence of the bridged radical (CH 2 ICH 2 ·) in a polar solution, obtained using time-resolved liquid-phase x-ray diffraction. This transient intermediate has long been hypothesized to explain stereo-chemical control in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5e1cb0db243da71a2daa2a297d9ea14
https://doi.org/10.1126/science.1114782