Results 91 to 100 of about 299,211 (194)

Ultrafast Decay of the Excited Singlet States of Thioxanthone by Internal Conversion and Intersystem Crossing

, 2010
The experimental ultrafast photophysics of thioxanthone in several aprotic organic solvents at room temperature is presented, measured using femtosecond transient absorption together with high-level ab initio CASPT2 calculations of the singlet- and ...
Patrice Jacques, Jacques, Patrice, Luis Serrano-Andrés, Grilj, Jakob, Vauthey, Eric, Eric Vauthey, Òscar Rubio-Pons, Gonzalo Angulo, Serrano-Andrés, Luis, Jakob Grilj, Angulo, Gonzalo, Rubio-Pons, Oscar   +11 more
core   +1 more source

Reverse intersystem crossing mechanisms in doped triangulenes

Physical Chemistry Chemical Physics
Electronic structure calculations suggest that reverse intersystem crossing in B and N-doped triangulenes can occur via both direct (spin–orbit coupling) and mediated (spin–vibronic coupling) mechanisms.
Asier E. Izu, Jon M. Matxain, David Casanova   +2 more
openaire   +3 more sources

Intersystem Crossing Processes in Nonplanar Aromatic Heterocyclic Molecules

, 2016
A comprehensive study of the photophysical properties of a series of monoaza[5]helicenes is presented on the basis of joint optical spectroscopy and quantum chemistry investigations.
Sergio Brovelli (1363038), Tullio Caronna (1467430), Veaceslav Coropceanu (1290342), Jean-Luc Brédas (2470432), Francesco Meinardi (1325424), Zhigang Shuai (1297695), David Beljonne (1282407), Jérôme Cornil (2394757), Cristina Bazzini (2471374), Riccardo Tubino (2181040), Karin Schmidt (50667)   +10 more
core   +1 more source

Atomic‐iodine‐substituted polydiacetylene nanospheres with boosted intersystem crossing and nonradiative transition through complete radiative transition blockade for ultraeffective phototherapy

Aggregate
The energy dissipation pathways of a photosensitizer for phototherapies, including photodynamic therapy (PDT) and photothermal therapy (PTT), compete directly with that of its fluorescence (FL) emission.
Dan Zhao, Lingling Zhang, Mingming Yin, Zhenyan He, Fang Fang, Minle Zhan, Sidan Tian, Fanling Meng, Liang Luo   +8 more
doaj   +1 more source

Slow fluorescence and fast intersystem crossing - The xanthone anomaly

Intersystem crossing of xanthone in protic solvents proceeds within ∼ 1 ps, whereas its fluorescence decays within 60–600 ps.
Milota, F., Fierz, B., Root, C., Gilch, P., Kiefhaber, T., Zinth, W., Schmidt, B., Heinz, B.   +7 more
core   +1 more source

Spin‐Orbit Coupling‐Modulated Ultrafast Spin‐Flip of Singlet/Triplet Self‐Trapped Exciton Near‐Infrared‐II Emission in Highly Distorted Manganese Iodide Dimer for Optical Multiplexing

Aggregate
Self‐trapped excitons (STEs) are generating significant interest due to their broadband emission and self‐absorption‐free advantages. However, achieving high‐efficiency singlet/triplet STE near‐infrared (NIR) emissive tuning remains challenging issues ...
Fangxue Chen, Fanju Meng, Yu Zha, Sailian Yan, Qianjin Zhang, Dacheng Zhou, Qi Wang, Jin Han, Yugeng Wen, Jianbei Qiu   +9 more
doaj   +1 more source

Ultrafast intersystem crossing dynamics in organic molecules

, 2018
Ultraschnelle Interkombination in organischen Molekülen ist ein faszinierendes Phänomen. Ihre experiementelle Beobachtung steht der lange vertretenen Überzeugung entgegen, dass Interkombination nur mit Spin-Bahn-Kopplungen von einer Größenordnung, die ...
Zobel, Jan Patrick
core  

Azulene as an anomaly in triplet-state engineering <i>via</i> bromination and/or carbonylation: internal conversion overrides intersystem crossing. [PDF]

Chem Sci
Vinod K, Tonnelé C, Rana A, Amalnadh T, Swathi Krishna PE, Roldao JC, Ottosson H, Casanova D, Hariharan M.   +8 more
europepmc   +1 more source

Lattice-Directed Spin-Vibronic Coherence-Mediated Ultrafast Intersystem Crossing in Crystalline Diplatinum Complex. [PDF]

J Am Chem Soc
Ghosh N, Eng J, Kromer S, Pope TJ, da Silva-Neto ML, Roy S, Pulleri Vadhyar S, Penfold TJ, Castellano FN, Miller RJD.   +9 more
europepmc   +1 more source

Achieving 1.0-s Thermally Activated Delayed Fluorescence via Synergistic Control of Reverse Intersystem Crossing and Exciton Cycling. [PDF]

Angew Chem Int Ed Engl
Lei Y, Liu R, He Y, Luo G, Liu C, Su J, Li B, Long X, Tan Y, Luo Y, Qiu H, Huang Y, Lu Z.   +12 more
europepmc   +1 more source