Excited State Dynamics of a Julolidino Analogue of Crystal Violet:  A Relaxation Path through a Conical Intersection?

1999 ◽  
Vol 103 (18) ◽  
pp. 3372-3377 ◽  
Author(s):  
Martin Jurczok ◽  
Pascal Plaza ◽  
Monique M. Martin ◽  
Wolfgang Rettig
Keyword(s):  
Excited State ◽  
Crystal Violet ◽  
Conical Intersection ◽  
Excited State Dynamics

Ultrafast excited-state dynamics at a conical intersection: the role of environmental effects

2005 ◽  
Vol 73 (1) ◽  
pp. C42-C46 ◽  
Author(s):  
Irene Burghardt ◽  
James T Hynes ◽  
Etienne Gindensperger ◽  
Lorenz S Cederbaum
Keyword(s):  
Excited State ◽  
Environmental Effects ◽  
Conical Intersection ◽  
Excited State Dynamics

scholarly journals Two-dimensional electronic-vibrational spectroscopic study of conical intersection dynamics: an experimental and electronic structure study

2019 ◽  
Vol 21 (26) ◽  
pp. 14153-14163 ◽  
Author(s):  
Eric C. Wu ◽  
Qinghui Ge ◽  
Eric A. Arsenault ◽  
Nicholas H. C. Lewis ◽  
Natalie L. Gruenke ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Excited State ◽  
Spectroscopic Study ◽  
Crystal Violet ◽  
Structure Study ◽  
Conical Intersection ◽  
Singlet Excited State ◽  
Two Dimensional ◽  
Triphenylmethane Dyes ◽  
Green Is

The relaxation from the lowest singlet excited state of the triphenylmethane dyes, crystal violet and malachite green, is studied via two-dimensional electronic-vibrational (2DEV) spectroscopy.

Photoisomerization of a phosphorus-based biradicaloid: Ultrafast dynamics through a conical intersection

2021 ◽  
Author(s):  
Tim Völzer ◽  
Henrik Beer ◽  
Axel Schulz ◽  
Stefan Lochbrunner ◽  
Jonas Bresien
Keyword(s):  
Excited State ◽  
Closed Shell ◽  
Open Shell ◽  
Conical Intersection ◽  
Ultrafast Dynamics ◽  
Pump Probe ◽  
Excited State Dynamics ◽  
Probe Spectroscopy

As previously reported, photoisomerization of the open-shell singlet biradicaloid [TerNP]2CNDmp yields its closed-shell housane-type isomer. In the present study, pump-probe spectroscopy was applied to investigate the excited-state dynamics of the...

Excited-State Dynamics in the RNA Nucleotide Uridine 5’-Monophosphate Investigated by Femtosecond Broadband Transient Absorption Spectroscopy

2019 ◽  
Author(s):  
Matthew M. Brister ◽  
Carlos Crespo-Hernández
Keyword(s):  
Excited State ◽  
Excited States ◽  
Ground State ◽  
Transient Absorption ◽  
Electronic Energy ◽  
Transient Absorption Spectroscopy ◽  
Electronic Relaxation ◽  
Vibrationally Excited ◽  
Excited State Dynamics ◽  
Π State

<p></p><p> Damage to RNA from ultraviolet radiation induce chemical modifications to the nucleobases. Unraveling the excited states involved in these reactions is essential, but investigations aimed at understanding the electronic-energy relaxation pathways of the RNA nucleotide uridine 5’-monophosphate (UMP) have not received enough attention. In this Letter, the excited-state dynamics of UMP is investigated in aqueous solution. Excitation at 267 nm results in a trifurcation event that leads to the simultaneous population of the vibrationally-excited ground state, a longlived <sup>1</sup>n<sub>O</sub>π* state, and a receiver triplet state within 200 fs. The receiver state internally convert to the long-lived <sup>3</sup>ππ* state in an ultrafast time scale. The results elucidate the electronic relaxation pathways and clarify earlier transient absorption experiments performed for uracil derivatives in solution. This mechanistic information is important because long-lived nπ* and ππ* excited states of both singlet and triplet multiplicities are thought to lead to the formation of harmful photoproducts.</p><p></p>

Modulation of Excited State Dynamics in Lead Halide Perovskite Films with Electrical Bias

2019 ◽  
Author(s):  
Gergely Samu ◽  
R.A. Scheidt ◽  
A. Balog ◽  
C. Janáky ◽  
P.V. Kamat
Keyword(s):  
Excited State ◽  
Excited State Dynamics ◽  
Halide Perovskite ◽  
Electrical Bias ◽  
Lead Halide
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