scholarly journals Bottom-up excited state dynamics of two cinnamate-based sunscreen filter molecules

2016 ◽  
Vol 18 (40) ◽  
pp. 28140-28149 ◽  
Author(s):  
Yoann Peperstraete ◽  
Michael Staniforth ◽  
Lewis A. Baker ◽  
Natércia D. N. Rodrigues ◽  
Neil C. Cole-Filipiak ◽  
...  
Keyword(s):  
Excited State ◽  
Bottom Up ◽  
Time Resolved ◽  
Pump Probe ◽  
Excited State Dynamics ◽  
Probe Spectroscopy

We have used time-resolved pump–probe spectroscopy to explore E-MMC's and E-EHMC's excited state dynamics upon UV-B photoexcitation.

Optical, electrochemical, third order nonlinear optical, and excited state dynamics studies of bis(3,5-trifluoromethyl)phenyl-zinc phthalocyanine

RSC Advances ◽  
2015 ◽  
Vol 5 (27) ◽  
pp. 20810-20817 ◽  
Author(s):  
Narra Vamsi Krishna ◽  
Varun Kumar Singh ◽  
Debasis Swain ◽  
Soma Venugopal Rao ◽  
Lingamallu Giribabu
Keyword(s):  
Excited State ◽  
Nonlinear Optical ◽  
Electrochemical Techniques ◽  
Zinc Phthalocyanine ◽  
Third Order ◽  
Pump Probe ◽  
Excited State Dynamics ◽  
Probe Spectroscopy

Synthesis and characterisation of a Zn phthalocyanine substituted with bis(3,5-trifluoromethyl)phenyl groups at peripheral positions by absorption, fluorescence and electrochemical techniques. Excited state dynamics were investigated by fs degenerate pump–probe spectroscopy.

scholarly journals An excited state dynamics driven reaction: wavelength-dependent photoisomerization quantum yields in [Ru(bpy)2(dmso)2]2+

2020 ◽  
Vol 11 (22) ◽  
pp. 5797-5807
Author(s):  
Maksim Y. Livshits ◽  
Lei Wang ◽  
Sebastian B. Vittardi ◽  
Stefan Ruetzel ◽  
Albert King ◽  
...  
Keyword(s):  
Excited State ◽  
Quantum Yields ◽  
State Behavior ◽  
Pump Probe ◽  
Excited State Dynamics ◽  
Probe Spectroscopy

We report the excited-state behavior of a simple bis-sulfoxide complex, cis-S,S-[Ru(bpy)2(dmso)2]2+, as investigated by femtosecond pump–probe spectroscopy.

Fluorescence and excited state dynamics of the deprotonated Schiff base retinal in proteorhodopsin

2015 ◽  
Vol 396 (9-10) ◽  
pp. 1109-1115 ◽  
Author(s):  
Elena Bühl ◽  
Markus Braun ◽  
Andrea Lakatos ◽  
Clemens Glaubitz ◽  
Josef Wachtveitl
Keyword(s):  
Schiff Base ◽  
Excited State ◽  
Steady State ◽  
Fluorescence Spectrum ◽  
Uv Light ◽  
Pump Probe ◽  
Time Constants ◽  
Excited State Dynamics ◽  
Steady State Fluorescence ◽  
Probe Spectroscopy

Abstract The UV light absorbing species of proteorhodopsin with deprotonated Schiff base retinal was investigated using steady-state fluorescence and femtosecond pump-probe spectroscopy. Compared to the all-trans retinal with protonated Schiff base, the deprotonated chromophore absorbs at 365 nm and exhibits a blue-shifted fluorescence spectrum. The unusually long-lived excited state decays bi-exponentially with time constants of 8 ps and 130 ps to form a deprotonated 13-cis retinal as the primary photo-product.

Femtosecond excited-state dynamics in chlorosomal carotenoids of the photosynthetic bacterium Chloroflexus aurantiacus revealed by near infrared pump-probe spectroscopy

2021 ◽  
Author(s):  
Andrei Yakovlev ◽  
Alexandra Taisova ◽  
Zoya Fetisova
Keyword(s):  
Excited State ◽  
Near Infrared ◽  
High Efficiency ◽  
Light Harvesting ◽  
Photosynthetic Bacterium ◽  
Chloroflexus Aurantiacus ◽  
Green Bacteria ◽  
Pump Probe ◽  
Excited State Dynamics ◽  
Probe Spectroscopy

In photosynthetic green bacteria, chlorosomes provide light harvesting with high efficiency. Chlorosomal carotenoids (Cars) participate in light harvesting together with the main pigment, bacteriochlorophyll (BChl) c/d/e. In the present work,...

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...

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