Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Wilson Quevedo"'
Autor:
Robert H. Temperton, Wilson Quevedo, Robert Seidel, Jens Uhlig, Joachim Schnadt, Petter Persson
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033030 (2021)
Resonant photoelectron spectroscopy (RPES) has been used to probe electronic structure properties of the closed-shell [Fe^{II}(CN)_{6}]^{4−} and open-shell [Fe^{III}(CN)_{6}]^{3−} prototype transition metal complexes in aqueous solution. Site-sel
Externí odkaz:
https://doaj.org/article/405d91a5016248c1b624715999813357
Autor:
Mattis Fondell, Sebastian Eckert, Raphael M. Jay, Christian Weniger, Wilson Quevedo, Johannes Niskanen, Brian Kennedy, Florian Sorgenfrei, Daniel Schick, Erika Giangrisostomi, Ruslan Ovsyannikov, Katrin Adamczyk, Nils Huse, Philippe Wernet, Rolf Mitzner, Alexander Föhlisch
Publikováno v:
Structural Dynamics, Vol 4, Iss 5, Pp 054902-054902-11 (2017)
We present a setup combining a liquid flatjet sample delivery and a MHz laser system for time-resolved soft X-ray absorption measurements of liquid samples at the high brilliance undulator beamline UE52-SGM at Bessy II yielding unprecedented statis
Externí odkaz:
https://doaj.org/article/440ac68ecceb4b3db61d060695ae5659
Autor:
Markus Kubin, Jan Kern, Sheraz Gul, Thomas Kroll, Ruchira Chatterjee, Heike Löchel, Franklin D. Fuller, Raymond G. Sierra, Wilson Quevedo, Christian Weniger, Jens Rehanek, Anatoly Firsov, Hartawan Laksmono, Clemens Weninger, Roberto Alonso-Mori, Dennis L. Nordlund, Benedikt Lassalle-Kaiser, James M. Glownia, Jacek Krzywinski, Stefan Moeller, Joshua J. Turner, Michael P. Minitti, Georgi L. Dakovski, Sergey Koroidov, Anurag Kawde, Jacob S. Kanady, Emily Y. Tsui, Sandy Suseno, Zhiji Han, Ethan Hill, Taketo Taguchi, Andrew S. Borovik, Theodor Agapie, Johannes Messinger, Alexei Erko, Alexander Föhlisch, Uwe Bergmann, Rolf Mitzner, Vittal K. Yachandra, Junko Yano, Philippe Wernet
Publikováno v:
Structural Dynamics, Vol 4, Iss 5, Pp 054307-054307-16 (2017)
X-ray absorption spectroscopy at the L-edge of 3d transition metals provides unique information on the local metal charge and spin states by directly probing 3d-derived molecular orbitals through 2p-3d transitions. However, this soft x-ray techniqu
Externí odkaz:
https://doaj.org/article/e62ed1004aa64887bad7492842ed8011
Publikováno v:
Materials, Vol 2, Iss 3, Pp 1305-1322 (2009)
Photo-induced phase transitions are characterized by the transformation from phase A to phase B through the absorption of photons. We have investigated the mechanism of the photo-induced phase transitions of four different ternary systems CiE4/alkane
Externí odkaz:
https://doaj.org/article/12c9b303b32940fea7c94fee0cf1a3d1
Publikováno v:
Structural Dynamics, Vol 2, Iss 5, Pp 054301-054301-13 (2015)
We present a liquid flatjet system for solution phase soft-x-ray spectroscopy. The flatjet set-up utilises the phenomenon of formation of stable liquid sheets upon collision of two identical laminar jets. Colliding the two single water jets, coming o
Externí odkaz:
https://doaj.org/article/cac4c21555324565ba14460ce118824c
Autor:
Simon Schreck, Annette Pietzsch, Kristjan Kunnus, Brian Kennedy, Wilson Quevedo, Piter S. Miedema, Philippe Wernet, Alexander Föhlisch
Publikováno v:
Structural Dynamics, Vol 1, Iss 5, Pp 054901-054901-14 (2014)
In resonant inelastic soft x-ray scattering (RIXS) from molecular and liquid systems, the interplay of ground state structural and core-excited state dynamical contributions leads to complex spectral shapes that partially allow for ambiguous interpre
Externí odkaz:
https://doaj.org/article/bfbcde5a963445ddaf1e54553e183644
Autor:
Kristjan Kunnus, Ida Josefsson, Ivan Rajkovic, Simon Schreck, Wilson Quevedo, Martin Beye, Sebastian Grübel, Mirko Scholz, Dennis Nordlund, Wenkai Zhang, Robert W Hartsock, Kelly J Gaffney, William F Schlotter, Joshua J Turner, Brian Kennedy, Franz Hennies, Simone Techert, Philippe Wernet, Michael Odelius, Alexander Föhlisch
Publikováno v:
New Journal of Physics, Vol 18, Iss 10, p 103011 (2016)
Ultrafast electronic and structural dynamics of matter govern rate and selectivity of chemical reactions, as well as phase transitions and efficient switching in functional materials. Since x-rays determine electronic and structural properties with e
Externí odkaz:
https://doaj.org/article/18009923150c4edcae6855b83689d99f
Autor:
H. Christian Schewe, Krystof Brezina, Vojtech Kostal, Philip E. Mason, Tillmann Buttersack, Dominik M. Stemer, Robert Seidel, Wilson Quevedo, Florian Trinter, Bernd Winter, Pavel Jungwirth
Publikováno v:
The Journal of Physical Chemistry B. 126:229-238
We report valence band photoelectron spectroscopy measurements of gas-phase and liquid-phase benzene as well as those of benzene dissolved in liquid ammonia, complemented by electronic structure calculations. The origins of the sizable gas-to-liquid-
Autor:
Karen L. Syres, David C. Grinter, Andrew G. Thomas, Claudia L. Compean-Gonzalez, Federica Venturini, Jordan Cole, Christopher Hardacre, Adam J. Greer, Georg Held, Zoë Henderson, Pilar Ferrer, Wilson Quevedo Garzon
Publikováno v:
Cole, J, Henderson, Z, Thomas, A G, Compeán-gonzález, C L, Greer, A J, Hardacre, C, Venturini, F, Garzon, W Q, Ferrer, P, Grinter, D C, Held, G & Syres, K L 2021, ' Near-Ambient Pressure XPS and NEXAFS Study of a Superbasic Ionic Liquid with CO2 ', The Journal of Physical Chemistry C . https://doi.org/10.1021/acs.jpcc.1c05738
In situ photoemission and near edge X-ray absorption fine structure (NEXAFS) techniques have been used to study the interaction of CO2 with an ionic liquid thin film. A thin film of the superbasic ionic liquid (SBIL) trihexyltetradecylphosphonium ben
Autor:
Alexander Large, Jake M. Seymour, Roger A. Bennett, Jorgee Ontaneda, Georg Held, Wilson Quevedo, Ricardo Grau-Crespo
Publikováno v:
Langmuir
Understanding the interaction of amino acids with metal surfaces is essential for the rational design of chiral modifiers able to confer enantioselectivity to metal catalysts. We present here an investigation of the adsorption of aspartic acid (Asp)