Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Stefan Ruetzel"'
Autor:
Albert King, Jeffrey J. Rack, Stefan Ruetzel, Maksim Y. Livshits, Lei Wang, Sebastian B. Vittardi, Tobias Brixner
Publikováno v:
Chemical Science
We report the excited-state behavior of a structurally simple bis-sulfoxide complex, cis-S,S-[Ru(bpy)2(dmso)2]2+, as investigated by femtosecond pump–probe spectroscopy. The results reveal that a single photon prompts phototriggered isomerization o
Publikováno v:
Angewandte Chemie International Edition. 54:11368-11386
Coherent multidimensional electronic spectroscopy can be employed to unravel various channels in molecular chemical reactions. This approach is thus not limited to analysis of energy transfer or charge transfer (i.e. processes from photophysics), but
Publikováno v:
The Journal of Physical Chemistry A. 118:11364-11372
Excitation with shaped femtosecond laser pulses is a logical extension of coherent two-dimensional (2D) spectroscopy. Here we combine quantum control and information from 2D spectroscopy to analyze the initial steps in three competing reaction pathwa
Autor:
Stefan Ruetzel, Bernd Engels, Christof Walter, Meike Diekmann, Patrick Nuernberger, Tobias Brixner
Publikováno v:
Proceedings of the National Academy of Sciences. 111:4764-4769
Coherent multidimensional electronic spectroscopy is commonly used to investigate photophysical phenomena such as light harvesting in photosynthesis in which the system returns back to its ground state after energy transfer. By contrast, we introduce
Autor:
Dörte Reitzenstein, Vladimir Dyakonov, Christoph Lambert, Carsten Deibel, Maria S. Hammer, Martin Kullmann, Stefan Ruetzel, Tatjana Quast, Florian Kanal, Tobias Brixner
Publikováno v:
Chemistry of Materials. 22:6641-6655
A polyradical consisting of alternating triarylamine and perchlorotriphenylmethyl radical moieties was synthesized by Horner−Emmons reaction. This compound is the first polymeric neutral mixed-vale...
Publikováno v:
ChemInform. 46
Coherent multidimensional electronic spectroscopy can be employed to unravel various channels in molecular chemical reactions. This approach is thus not limited to analysis of energy transfer or charge transfer (i.e. processes from photophysics), but
Publikováno v:
SPIE Proceedings.
We demonstrate how diverse femtosecond spectroscopy approaches coalesce to a comprehensive understanding of photochemical reaction pathways, exemplarily for the ring-open isomers of merocyanine compounds. Pump-probe transient absorption spectroscopy
Autor:
Tobias Brixner, Bernd Engels, Meike Diekmann, Stefan Ruetzel, Christof Walter, Patrick Nuernberger
Publikováno v:
The Journal of chemical physics. 140(22)
Upon ultraviolet excitation, photochromic spiropyran compounds can be converted by a ring-opening reaction into merocyanine molecules, which in turn can form several isomers differing by cis and trans configurations in the methine bridge. Whereas the
Publikováno v:
EPJ Web of Conferences, Vol 41, p 05001 (2013)
We use pump-repump-probe transient absorption spectroscopy to investigate the role of higher-lying electronic states in the photochemistry of a molecular switch. Moreover, replacing the pump pulse by a pulse-shaper-generated phase-stable double pulse
Publikováno v:
Physical review letters. 110(14)
We establish coherent triggered-exchange two-dimensional (TE2D) electronic spectroscopy as an expansion of pump-repump-probe transient absorption spectroscopy and uniquely elucidate the role of higher-lying electronic states in ultrafast photochemist