Quantum-Chemical Studies on Excitation Energy Transfer Processes in BODIPY-Based Donor-Acceptor Systems.
Quantum-Chemical Studies on Excitation Energy Transfer Processes in BODIPY-Based Donor-Acceptor Systems.
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基于 BODIPY 的供体-受体系统中激发能量转移过程的量子化学研究
DOI:
10.1021/acs.jctc.5b00501
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发表时间:
2015
影响因子:
5.5
通讯作者:
C. M. Marian
中科院分区:
文献类型:
--
作者:
J. D. Spiegel;M. Kleinschmidt;A. Larbig;J. Tatchen;C. M. Marian
BODIPY-based excitation energy transfer (EET) cassettes are experimentally extensively studied and serve as excellent model systems for the investigation of photophysical processes, since they occur in any photosynthetic system and in organic photovoltaics. In the present work, the EET rates in five BODIPY-based EET cassettes in which anthracene serves as the donor have been determined, employing the monomer transition density approach (MTD) and the ideal dipole approximation (IDA). To this end, a new computer program has been devised that calculates the direct and exchange contributions to the excitonic coupling (EC) matrix element from transition density matrices generated by a combined density functional and multireference configuration interaction (DFT/MRCI) calculation for the monomers. EET rates have been calculated according to Fermi’s Golden Rule from the EC and the spectral overlap, which was obtained from the calculated vibrationally resolved emission and absorption spectra of donor and acceptor, respectively. We find that the direct contribution to the EC matrix element is dominant in the studied EET cassettes. Furthermore, we show that the contribution of the molecular linker to the EET rate cannot be neglected. In our best fragment model, the molecular linker is attached to the donor moiety. For cassettes in which the transition dipole moments of donor and acceptor are oriented in parallel manner, our results confirm the experimental findings reported by Kim et al. [J. Phys. Chem. A2006,110, 20–27]. In cassettes with a perpendicular orientation of the donor and acceptor transition dipole moments, dynamic effects turn out to be important.
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DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
森川響二朗;竹内智章;北森武彦;西川浩矢
通讯作者:
西川浩矢
影响因子:
15
作者:
G. Pourtois;D. Beljonne;D. Beljonne;J. Cornil;J. Cornil;M. Ratner;J. Brédas;J. Brédas
通讯作者:
J. Brédas
影响因子:
4.3
作者:
Wan, CW;Burghart, A;Burgess, K
通讯作者:
Burgess, K
影响因子:
3.1
作者:
S. Caprasecca;C. Curutchet;B. Mennucci
通讯作者:
B. Mennucci
DOI:
10.1063/1.4858464
发表时间:
2014-01
期刊:
The Journal of chemical physics
影响因子:
--
作者:
V. Stehr;B. Engels;C. Deibel;R. Fink
通讯作者:
V. Stehr;B. Engels;C. Deibel;R. Fink