Quantum interference effects elucidate triplet-pair formation dynamics in intramolecular singlet-fission molecules
Quantum interference effects elucidate triplet-pair formation dynamics in intramolecular singlet-fission molecules
复制标题
量子干涉效应阐明分子内单线裂变分子中三重线对形成动力学
DOI:
10.1038/s41557-022-01107-8
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发表时间:
2023
期刊:
影响因子:
21.8
通讯作者:
Shukla, Alok
中科院分区:
文献类型:
--
作者:
Parenti, Kaia R.;Chesler, Rafi;He, Guiying;Bhattacharyya, Pritam;Xiao, Beibei;Huang, Huaxi;Malinowski, Daniel;Zhang, Jocelyn;Yin, Xiaodong;Shukla, Alok
Quantum interference (QI)—the constructive or destructive interference of conduction pathways through molecular orbitals—plays a fundamental role in enhancing or suppressing charge and spin transport in organic molecular electronics. Graphical models were developed to predict constructive versus destructive interference in polyaromatic hydrocarbons and have successfully estimated the large conductivity differences observed in single-molecule transport measurements. A major challenge lies in extending these models to excitonic (photoexcited) processes, which typically involve distinct orbitals with different symmetries. Here we investigate how QI models can be applied as bridging moieties in intramolecular singlet-fission compounds to predict relative rates of triplet pair formation. In a series of bridged intramolecular singlet-fission dimers, we found that destructive QI always leads to a slower triplet pair formation across different bridge lengths and geometries. A combined experimental and theoretical approach reveals the critical considerations of bridge topology and frontier molecular orbital energies in applying QI conductance principles to predict rates of multiexciton generation.
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影响因子:
10.8
作者:
Jianlong Xia;B. Capozzi;Sujun Wei;M. Strange;A. Batra;J. Moreno;Roey J. Amir;E. Amir;G. Solomon;L. Venkataraman;L. Campos
通讯作者:
Jianlong Xia;B. Capozzi;Sujun Wei;M. Strange;A. Batra;J. Moreno;Roey J. Amir;E. Amir;G. Solomon;L. Venkataraman;L. Campos
影响因子:
1.7
作者:
S. Ramasesha;I. D. L. Albert;B. Sinha
通讯作者:
B. Sinha
影响因子:
1.7
作者:
Khan, S.;Mazumdar, S.
通讯作者:
Mazumdar, S.
DOI:
10.33774/chemrxiv-2021-5lhjx-v2
发表时间:
2021-10
期刊:
The journal of physical chemistry letters
影响因子:
--
作者:
Vibin Abraham;N. Mayhall
通讯作者:
Vibin Abraham;N. Mayhall
影响因子:
23.5
作者:
Basel, Bettina S.;Zirzlmeier, Johannes;Gulditla, Dirk M.
通讯作者:
Gulditla, Dirk M.