Ultrafast dynamics of the ESIPT photoswitch N-(3-pyridinyl)-2-pyridinecarboxamide

2018 ◽  
Vol 20 (4) ◽  
pp. 2646-2655 ◽  
Author(s):  
Hendrik Böhnke ◽  
Julia Bahrenburg ◽  
Xiaonan Ma ◽  
Katharina Röttger ◽  
Christian Näther ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Ultrafast Dynamics ◽  
Time Resolved ◽  
Vibrational Absorption

A potential ESIPT photoswitch has been investigated by femtosecond time-resolved electronic and vibrational absorption spectroscopy.

scholarly journals Development of an experimental apparatus to observe ultrafast phenomena by tender X-ray absorption spectroscopy at PAL-XFEL

2022 ◽  
Vol 29 (1) ◽  
Author(s):  
Yujin Kim ◽  
Daewoong Nam ◽  
Rory Ma ◽  
Sangsoo Kim ◽  
Myung-jin Kim ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Spectroscopic Technique ◽  
Ultrafast Dynamics ◽  
Electronic Information ◽  
Time Resolved ◽  
X Ray ◽  
Experimental Apparatus ◽  
Technical Achievement ◽  
X Ray Absorption ◽  
Pal Xfel

Understanding the ultrafast dynamics of molecules is of fundamental importance. Time-resolved X-ray absorption spectroscopy (TR-XAS) is a powerful spectroscopic technique for unveiling the time-dependent structural and electronic information of molecules that has been widely applied in various fields. Herein, the design and technical achievement of a newly developed experimental apparatus for TR-XAS measurements in the tender X-ray range with X-ray free-electron lasers (XFELs) at the Pohang Accelerator Laboratory XFEL (PAL-XFEL) are described. Femtosecond TR-XAS measurements were conducted at the Ru L 3-edge of well known photosensitizer tris(bipyridine)ruthenium(II) chloride ([Ru(bpy)3]2+) in water. The results indicate ultrafast photoinduced electron transfer from the Ru center to the ligand, which demonstrates that the newly designed setup is applicable for monitoring ultrafast reactions in the femtosecond domain.

Efficient intersystem crossing in 2-aminopurine riboside probed by femtosecond time-resolved transient vibrational absorption spectroscopy

2018 ◽  
Vol 20 (30) ◽  
pp. 20033-20042 ◽  
Author(s):  
Hendrik Böhnke ◽  
Katharina Röttger ◽  
Rebecca A. Ingle ◽  
Hugo J. B. Marroux ◽  
Mats Bohnsack ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Intersystem Crossing ◽  
Time Resolved ◽  
Vibrational Absorption

The photophysical dynamics of 2-aminopurine, a fluorescent analogue of the canonical nucleobase adenine, has been studied by femtosecond transient vibrational absorption spectroscopy.

scholarly journals Ultrafast Dynamics of Plasmon-Mediated Charge Transfer in Ag@CeO2 Studied by Free Electron Laser Time-Resolved X-ray Absorption Spectroscopy

Nano Letters ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1729-1734
Author(s):  
Jacopo Stefano Pelli Cresi ◽  
Emiliano Principi ◽  
Eleonora Spurio ◽  
Daniele Catone ◽  
Patrick O’Keeffe ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Absorption Spectroscopy ◽  
Free Electron ◽  
Free Electron Laser ◽  
Ultrafast Dynamics ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Triplet state formation and quenching dynamics of 2-mercaptobenzothiazole in solution

2016 ◽  
Vol 18 (37) ◽  
pp. 26224-26235 ◽  
Author(s):  
Daisuke Koyama ◽  
Andrew J. Orr-Ewing
Keyword(s):  
Energy Transfer ◽  
Triplet State ◽  
State Formation ◽  
Absorption Spectroscopy ◽  
Triplet Energy ◽  
Time Resolved ◽  
Vibrational Absorption ◽  
Triplet Energy Transfer

An adduct-mediated triplet energy transfer from a triplet thione to an alkene is observed with time-resolved vibrational absorption spectroscopy.

scholarly journals Simulation of time-resolved x-ray absorption spectroscopy of ultrafast dynamics in particle-hole-excited 4‐(2-thienyl)-2,1,3-benzothiadiazole

2020 ◽  
Vol 7 (4) ◽  
pp. 044101
Author(s):  
Khadijeh Khalili ◽  
Ludger Inhester ◽  
Caroline Arnold ◽  
Anders S. Gertsen ◽  
Jens Wenzel Andreasen ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Ultrafast Dynamics ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Probing the ultrafast dynamics in nanomaterial complex systems by femtosecond transient absorption spectroscopy

2016 ◽  
Vol 4 ◽  
Author(s):  
Qun Zhang ◽  
Yi Luo
Keyword(s):  
Complex Systems ◽  
Absorption Spectroscopy ◽  
Ultrafast Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Ultrafast Dynamics ◽  
Time Resolved ◽  
The Past ◽  
Femtosecond Transient Absorption ◽  
Consistent Information

Over the past decade the integration of ultrafast spectroscopy with nanoscience has greatly propelled the development of nanoscience, as the key information gleaned from the mechanistic studies with the assistance of ultrafast spectroscopy enables a deeper understanding of the structure–function interplay and various interactions involved in the nanosystems. This mini-review presents an overview of the recent advances achieved in our ultrafast spectroscopy laboratory that address the ultrafast dynamics and related mechanisms in several representative nanomaterial complex systems by means of femtosecond time-resolved transient absorption spectroscopy. We attempt to convey instructive, consistent information regarding the important processes, pathways, dynamics, and interactions involved in the nanomaterial complex systems, most of which exhibit excellent performance in photocatalysis.

Temperature Dependent Kinetics of the OH/HO2/O3Chain Reaction by Time-Resolved IR Laser Absorption Spectroscopy

2000 ◽  
Vol 104 (17) ◽  
pp. 3964-3973 ◽  
Author(s):  
Sergey A. Nizkorodov ◽  
Warren W. Harper ◽  
Bradley W. Blackmon ◽  
David J. Nesbitt
Keyword(s):  
Absorption Spectroscopy ◽  
Laser Absorption Spectroscopy ◽  
Temperature Dependent ◽  
Time Resolved ◽  
Laser Absorption ◽  
Ir Laser ◽  
Kinetics Of
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