Results 31 to 40 of about 14,125 (198)
Iraqi Journal of Physics, 2021 The effect of molecules intersystem crossing (Kisc) on characteristics (energy and duration) of a Passive Q- switched Laser Pulse has been studied by mathematical description (rate equations model) for temporal performance of which was used as a ...
Abdul-Kareem Mahdi Salih
doaj
Structural Dynamics, 2017 The competition between ultrafast intersystem crossing and internal conversion in benzene, toluene, and p-xylene is investigated with time-resolved photoelectron spectroscopy and quantum chemical calculations.
Anne B. Stephansen, Theis I. Sølling
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Barrier-Free Reverse-Intersystem Crossing by Strong Light-Matter Coupling
, 2020 Strong light-matter coupling provides the means to challenge the traditional rules of chemistry. In particular, an energy inversion of singlet and triplet excited states would be fundamentally remarkable since it would violate the classical Hund’s rule ...
Suman, Mallick +3 more
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Nature Communications, 2022 Here, the authors investigate naphthalimide-based compounds with cold triplet excitons utilized by triplet-triplet annihilation-mediated high-lying reverse intersystem crossing, and realize rate constant of over 109 s−1 with exciton utilization ...
Yanju Luo +14 more
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Ultraviolet irradiation-responsive dynamic ultralong organic phosphorescence in polymeric systems
Nature Communications, 2021 Efficient stimulus-responsive phosphorescence organic materials are attractive, but are extremely rare because of unclear design principles and intrinsically spin-forbidden intersystem crossing.
Yongfeng Zhang +8 more
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Intersystem Crossing Processes of Acridine [PDF]
Bulletin of the Chemical Society of Japan, 1977 Abstract The T1(π, π*)→T3(π, π*) absorption of acridine has first been observed at about 985 nm in ethanol. Temperature dependences of the fluorescence lifetime and the triplet yield of acridine were investigated in poly(vinyl alcohol) film, and it was found that the intersystem crossing from the first excited singlet state S1(π, π*) to ...
Koichi Kikuchi +3 more
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Photoinduced Intersystem Crossing in DNA Oxidative Lesions and Epigenetic Intermediates
, 2020 The propensity of 5-formyluracil and 5-formylcytosine, i.e. oxidative lesions and epigenetic intermediates, in acting as intrinsic DNA photosensitizers is unraveled by using a combination of molecular modeling, simulation and spectroscopy. Exploration of
Antonio Francés-Monerris (8562592) +9 more
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, 2023 Thermally activated delayed fluorescence (TADF) materials and multi-resonant (MR) variants are promising organic emitters that can achieve an internal electroluminescence quantum efficiency of approximately 100%.
Takeshi, Yanai +4 more
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Intersystem crossing in the entrance channel of the reaction of O(3P) with pyridine [PDF]
, 2022 Two quantum effects can enable reactions to take place at energies below the barrier separating reactants from products: tunnelling and intersystem crossing between coupled potential energy surfaces.
Alessandrini, Silvia +12 more
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Effect of temperature on rate of the spin-forbidden transition in uracil and thymine [PDF]
Journal of the Serbian Chemical Society, 2013 The intersystem crossing rates of uracil and thymine molecules in interaction with the heat bath were studied by means of the ab initio methods. The rates were calculated employing the time-dependent approach based on the correlation function.
Etinski Mihajlo
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