Results 11 to 20 of about 9,652 (250)
Elucidating complex triplet-state dynamics in the model system isopropylthioxanthone
iScience, 2022 Summary: We introduce techniques for probing the dynamics of triplet states. We employ these tools, along with conventional techniques, to develop a detailed understanding of a complex chemical system: a negative-tone, radical photoresist for multiphoton
Nikolaos Liaros +11 more
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Visualizing excited state dynamics of conjugated molecules trough femtosecond stimulated Raman scattering [PDF]
EPJ Web of Conferences, 2019 The reaction pathway in the photoexcited model compound 2-methyl-5-phenylthiophene has been unravelled by Femtosecond Stimulated Raman Scattering and quantum chemical calculations.
Giovanni Batignani +5 more
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Direct observation of structural dynamics upon photo-excitation in a spin crossover crystal with femtosecond electron diffraction [PDF]
EPJ Web of Conferences, 2019 Photoinduced spin transitions are studied by femtosecond electron diffraction to understand ultrafast structural dynamics associated with intersystem crossing.
Jiang Yifeng +9 more
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Intersystem Crossing in Diplatinum Complexes
The Journal of Physical Chemistry A, 2016 Intersystem crossing (ISC) in solid [(C4H9)4N]4[Pt2(μ-P2O5(BF2)2)4], abbreviated Pt(pop-BF2), is remarkably slow for a third-row transition metal complex, ranging from τISC ≈ 0.9 ns at 310 K to τISC ≈ 29 ns below 100 K. A classical model based on Boltzmann population of one temperature-independent and two thermally activated pathways was previously ...
Lam, Yan Choi +2 more
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Intersystem crossing in thiobases proceeds by a dark intermediate state [PDF]
EPJ Web of Conferences, 2019 4-thiouracil (4TU) is studied by transient absorption spectroscopy employing sub-20 fs UV-pulses and hybrid QM(CASPT2) / MM(AMBER) computations (static and dynamic), evidencing that, along the photoexcited relaxation pathway, intersystem crossing ...
Teles-Ferreira Danielle Cristina +10 more
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Intersystem crossing in the exit channel
Nature Chemistry, 2018 Intersystem crossing plays an important role in photochemistry. It is understood to be efficient when heavy atoms are present due to strong spin-orbit coupling, or when strongly bound long-lived complexes are formed that increase the chance of finding the singlet-triplet intersection seam.
Hongwei Li +3 more
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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
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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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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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