Unraveling the structure and exciton coupling for multichromophoric merocyanine dye molecules.
Unraveling the structure and exciton coupling for multichromophoric merocyanine dye molecules.
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揭示多发色部花青染料分子的结构和激子耦合。
DOI:
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
F. Würthner
中科院分区:
文献类型:
--
作者:
Federico Koch;M. Stolte;André Zitzler;D. Bialas;Andreas F. Steinbacher;T. Brixner;F. Würthner
The relative orientation of chromophores is a key factor in determining the relationship between the structure and the functionality in molecular multichromophore ensembles. In the case of structurally flexible molecular systems in solution, the task to clarify the relevant effects of accessible chromophore orientations with spectroscopic observations is very demanding. In this study, we address this issue by investigating a series of differently connected multichromophoric systems composed of highly dipolar merocyanine dyes that are systematically varied in their substitution pattern and the number of chromophores attached to a bridging benzene ring. Combining electro-optical absorption (EOA) and UV/Vis spectroscopy with density functional theory (DFT) as well as exciton theory discloses conformational preferences and rationalizes the optical properties of the interacting chromophores. Our findings suggest for all multichromophoric systems there is a relative orientation of the chromophores which compensates for the individual dipole moments of the merocyanine dyes by pointing preferably in opposing directions. These orientations furthermore rationalize the observed spectral properties by partly excitonically-coupled subunits.
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影响因子:
15
作者:
Arjona-Esteban, Alhama;Krumrain, Julian;Wuerthner, Frank
通讯作者:
Wuerthner, Frank
影响因子:
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作者:
A. Lv;M. Stolte;F. Würthner
通讯作者:
A. Lv;M. Stolte;F. Würthner
DOI:
10.1039/c6cp02437h
发表时间:
2016
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
作者:
F. Koch;A. Steinbacher;C. Consani;A. Zitzler-Kunkel;M. Stolte;F. Würthner;T. Brixner
通讯作者:
T. Brixner
DOI:
10.1063/1.4881258
发表时间:
2014
期刊:
The Journal of chemical physics
影响因子:
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作者:
S. Ruetzel;M. Diekmann;P. Nuernberger;C. Walter;B. Engels;T. Brixner
通讯作者:
T. Brixner
DOI:
10.1002/cphc.201300062
发表时间:
2013
期刊:
Chemphyschem : a European journal of chemical physics and physical chemistry
影响因子:
--
作者:
U. Selig;P. Nuernberger;V. Dehm;V. Settels;M. Gsänger;B. Engels;F. Würthner;T. Brixner
通讯作者:
T. Brixner