Results 11 to 20 of about 844 (169)

Coupled Excited-State Dynamics in N-Substituted 2-Methoxy-9-Acridones

open access: yesFrontiers in Chemistry, 2019
Fluorophores of the acridone family have been widely employed in many applications, such as DNA sequencing, the detection of biomolecules, and the monitoring of enzymatic systems, as well as being the bases of intracellular sensors and even antitumoral ...
M. Carmen Gonzalez-Garcia   +9 more
doaj   +1 more source

Water-Soluble Single-Benzene Chromophores: Excited State Dynamics and Fluorescence Detection

open access: yesMolecules, 2022
Two water-soluble single-benzene-based chromophores, 2,5-di(azetidine-1-yl)-tereph- thalic acid (DAPA) and its disodium carboxylate (DAP-Na), were conveniently obtained.
Yingge Fan   +3 more
doaj   +1 more source

Disentangling conical intersection and coherent molecular dynamics in methyl bromide with attosecond transient absorption spectroscopy

open access: yesNature Communications, 2019
Excited-state molecular dynamics may be too complex to be resolved by femtosecond spectroscopic studies. Here the authors resolve the competing pathways in the excited state dynamics of methyl bromide by attosecond transient absorption spectroscopy, from
Henry Timmers   +9 more
doaj   +1 more source

Excited-state Dynamics of Radical Ions in Liquids

open access: yesCHIMIA, 2021
Thomas Bally has acquired international recognition for his work on the photochemistry of reactive intermediates, which include radical ions. Here, we present a brief overview of our investigations of the excited-state dynamics of radical ions in liquids
Jakob Grilj   +2 more
doaj   +1 more source

Mapping the ultrafast vibrational dynamics of all-trans and 13-Cis retinal isomerization in Anabaena Sensory Rhodopsin [PDF]

open access: yesEPJ Web of Conferences, 2019
The ground and excited state evolution of fingerprint vibrational modes of all-trans-and 13-cis-retinal are mapped by impulsive vibrational spectroscopy. All-trans-retinal shows slower frequency shift dynamics in the excited state in comparison to 13-cis-
Roy Partha Pratim   +3 more
doaj   +1 more source

Excited-State Dynamics of Melamine and Its Lysine Derivative Investigated by Femtosecond Transient Absorption Spectroscopy

open access: yesMolecules, 2016
Melamine may have been an important prebiotic information carrier, but its excited-state dynamics, which determine its stability under UV radiation, have never been characterized.
Yuyuan Zhang   +5 more
doaj   +1 more source

A Protein Environment-Modulated Energy Dissipation Channel in LHCII Antenna Complex

open access: yesiScience, 2020
Summary: The major light-harvesting complex of photosystem II (LHCII) is the main contributor to sunlight energy harvesting in plants. The flexible design of LHCII underlies a photoprotective mechanism whereby this complex switches to a dissipative state
Francesco Saccon   +5 more
doaj   +1 more source

Deprotonation-induced enhancement in fluorescence of 2-((2-hydroxybenzylidene)amino)phenol, a Schiff base

open access: yesChemical Physics Impact, 2021
Excited state dynamics of neutral and anionic forms of 2-((2- hydroxybenzylidene)amino)phenol (HBAP), a Schiff base, has been elucidated using time resolved fluorescence spectroscopy. The neutral molecule exhibits keto-enol tautomerism.
Arkaprava Chowdhury   +2 more
doaj   +1 more source

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

open access: yesStructural Dynamics, 2020
To date, alternating co-polymers based on electron-rich and electron-poor units are the most attractive materials to control functionality of organic semiconductor layers in which ultrafast excited-state processes play a key role.
Khadijeh Khalili   +5 more
doaj   +1 more source

A detailed theoretical investigation on intramolecular charge transfer mechanism of primary, secondary, and tertiary p-amino substituted benzaldehyde

open access: yesChemical Physics Impact
This article reports a detailed theoretical investigation on dual fluorescence properties of p-amino substituted benzaldehyde molecules by taking specifically p-N,N-dimethylaminobenzaldehyde (3° PABA), p-N-methylaminobenzaldehyde (2° PABA), and p ...
Palash Jyoti Boruah   +3 more
doaj   +1 more source

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