The role of the dipolar neighborhood on the relaxation dynamics of multichromophoric merocyanines.
The role of the dipolar neighborhood on the relaxation dynamics of multichromophoric merocyanines.
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偶极邻域对多发色部花青弛豫动力学的作用
DOI:
10.1039/c6cp02437h
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
T. Brixner
中科院分区:
文献类型:
--
作者:
F. Koch;A. Steinbacher;C. Consani;A. Zitzler-Kunkel;M. Stolte;F. Würthner;T. Brixner
The interactions between different chromophores within a molecular system are crucial to comprehend relaxation dynamics, regardless if one deals with small molecules or larger systems like polymers or aggregates. We investigate a series of merocyanine molecules that contain one, two or three highly dipolar (μg = 13.1 D) dyes in close vicinity to study the influence and origin of interactions, e.g., electronic, vibronic, or the formation of excitons. Relaxation dynamics are probed via transient absorption and coherent two-dimensional spectroscopy. Furthermore, we derive a general relaxation model which can be applied for all merocyanines under investigation and can be used as a reference point for other dipolar donor–acceptor dyes. The intramolecular charge-transfer state of the monomeric merocyanine is stabilized by dipolar neighbor molecules in the bis- and tris-chromophoric dyes.
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DOI:
10.1063/1.2210482
发表时间:
2006
期刊:
The Journal of chemical physics
影响因子:
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The journal of physical chemistry. A
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发表时间:
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期刊:
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DOI:
--
发表时间:
2017
期刊:
Physical Chemistry, Chemical Physics - PCCP
影响因子:
--
作者:
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