scholarly journals Tracking reaction dynamics in solution by pump–probe X-ray absorption spectroscopy and X-ray liquidography (solution scattering)

2016 ◽  
Vol 52 (19) ◽  
pp. 3734-3749 ◽  
Author(s):  
Jeongho Kim ◽  
Kyung Hwan Kim ◽  
Key Young Oang ◽  
Jae Hyuk Lee ◽  
Kiryong Hong ◽  
...  
Keyword(s):  
Real Time ◽  
Absorption Spectroscopy ◽  
Reaction Dynamics ◽  
Solution Phase ◽  
Pump Probe ◽  
X Ray ◽  
Electronic Dynamics ◽  
Photoinduced Reactions ◽  
X Ray Absorption

TRXL and TRXAS are powerful techniques for real-time probing of structural and electronic dynamics of photoinduced reactions in solution phase.

scholarly journals NO binding kinetics in myoglobin investigated by picosecond Fe K-edge absorption spectroscopy

2015 ◽  
Vol 112 (42) ◽  
pp. 12922-12927 ◽  
Author(s):  
Mahsa Silatani ◽  
Frederico A. Lima ◽  
Thomas J. Penfold ◽  
Jochen Rittmann ◽  
Marco E. Reinhard ◽  
...  
Keyword(s):  
Active Center ◽  
Absorption Spectroscopy ◽  
Spectroscopic Studies ◽  
Pump Probe ◽  
X Ray ◽  
The Difference ◽  
Direct Sensitivity ◽  
X Ray Absorption ◽  
Recombination Kinetics ◽  
532 Nm

Diatomic ligands in hemoproteins and the way they bind to the active center are central to the protein’s function. Using picosecond Fe K-edge X-ray absorption spectroscopy, we probe the NO-heme recombination kinetics with direct sensitivity to the Fe-NO binding after 532-nm photoexcitation of nitrosylmyoglobin (MbNO) in physiological solutions. The transients at 70 and 300 ps are identical, but they deviate from the difference between the static spectra of deoxymyoglobin and MbNO, showing the formation of an intermediate species. We propose the latter to be a six-coordinated domed species that is populated on a timescale of ∼200 ps by recombination with NO ligands. This work shows the feasibility of ultrafast pump–probe X-ray spectroscopic studies of proteins in physiological media, delivering insight into the electronic and geometric structure of the active center.

Towards X-Ray Absorption Spectroscopy in Real Time

ChemPhysChem ◽  
2009 ◽  
Vol 10 (13) ◽  
pp. 2197-2200 ◽  
Author(s):  
Matthias Bauer ◽  
Helmut Bertagnolli
Keyword(s):  
Real Time ◽  
Absorption Spectroscopy ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Investigation of Nonequilibrium Electronic Dynamics of Warm Dense Copper with Femtosecond X-Ray Absorption Spectroscopy

2021 ◽  
Vol 127 (17) ◽  
Author(s):  
Jong-Won Lee ◽  
Minju Kim ◽  
Gyeongbo Kang ◽  
Sam M. Vinko ◽  
Leejin Bae ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
X Ray ◽  
Electronic Dynamics ◽  
X Ray Absorption

scholarly journals Exploring reaction dynamics in lithium–sulfur batteries by time-resolved operando sulfur K-edge X-ray absorption spectroscopy

2019 ◽  
Vol 55 (34) ◽  
pp. 4993-4996 ◽  
Author(s):  
Enyue Zhao ◽  
Junyang Wang ◽  
Feng Li ◽  
Zheng Jiang ◽  
Xiao-Qing Yang ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Reaction Dynamics ◽  
Conversion Process ◽  
Time Resolved ◽  
X Ray ◽  
Lithium Sulfur Batteries ◽  
X Ray Absorption ◽  
Sulfur Electrode ◽  
Lithium Sulfur

The multistep kinetic-determining conversion process of a sulfur electrode is directly revealed through time-resolved operando X-ray absorption spectroscopy.

Solution-Phase Structure and Bonding of Au38(SR)24 Nanoclusters from X-ray Absorption Spectroscopy

2010 ◽  
Vol 115 (1) ◽  
pp. 65-69 ◽  
Author(s):  
Mark A. MacDonald ◽  
Peng Zhang ◽  
Ning Chen ◽  
Huifeng Qian ◽  
Rongchao Jin
Keyword(s):  
Absorption Spectroscopy ◽  
Phase Structure ◽  
Solution Phase ◽  
X Ray ◽  
Structure And Bonding ◽  
X Ray Absorption

scholarly journals Pump–probe XAS investigation of the triplet state of an Ir photosensitizer with chromenopyridinone ligands

2018 ◽  
Vol 17 (7) ◽  
pp. 896-902 ◽  
Author(s):  
Grigory Smolentsev ◽  
Kaj M. van Vliet ◽  
Nicolo Azzaroli ◽  
Jeroen A. van Bokhoven ◽  
Albert M. Brouwer ◽  
...  
Keyword(s):  
Excited State ◽  
Dft Calculations ◽  
Triplet State ◽  
Absorption Spectroscopy ◽  
Triplet Excited State ◽  
Pump Probe ◽  
X Ray ◽  
X Ray Absorption

The triplet excited state of a new Ir-based photosensitizer with two chromenopyridinone and one bipyridine-based ligands has been studied by pump–probe X-ray absorption spectroscopy (XANES) coupled with DFT calculations.

scholarly journals Examination of Cr(VI) treatment by zero-valent iron using in situ, real-time X-ray absorption spectroscopy and Cr isotope measurements

2014 ◽  
Vol 142 ◽  
pp. 299-313 ◽  
Author(s):  
Julia H. Jamieson-Hanes ◽  
Adam M. Lentz ◽  
Richard T. Amos ◽  
Carol J. Ptacek ◽  
David W. Blowes
Keyword(s):  
Real Time ◽  
Absorption Spectroscopy ◽  
Zero Valent Iron ◽  
X Ray ◽  
X Ray Absorption ◽  
Isotope Measurements

scholarly journals Real-Time X-ray Absorption Spectroscopy of Uranium, Iron, and Manganese in Contaminated Sediments During Bioreduction

2008 ◽  
Vol 42 (8) ◽  
pp. 2839-2844 ◽  
Author(s):  
Tetsu K. Tokunaga ◽  
Jiamin Wan ◽  
Yongman Kim ◽  
Steve R. Sutton ◽  
Matthew Newville ◽  
...  
Keyword(s):  
Real Time ◽  
Absorption Spectroscopy ◽  
Contaminated Sediments ◽  
X Ray ◽  
X Ray Absorption ◽  
Iron And Manganese
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