Reconstruction of the Molecular Structure of a Multichromophoric System Using Single-Molecule Defocused Wide-Field Imaging.

Reconstruction of the Molecular Structure of a Multichromophoric System Using Single-Molecule Defocused Wide-Field Imaging.
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使用单分子散焦宽场成像重建多发色系统的分子结构

DOI:
10.1021/jz501233d
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发表时间:
2014
期刊:
The journal of physical chemistry letters
影响因子:
--
通讯作者:
D. Kim
D. Kim
中科院分区:
--
文献类型:
--
作者:
S. Ham;J. Yang;F. Schlosser;F. Würthner;D. Kim

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单分子离焦广场成像(DWFI)已被证明是确定分子结构参数的有用手段,如多发色分子体系中跃迁偶极矩的取向和生色团之间的角度关系。对于一系列不同环大小的乙炔连接的二苯二亚胺(PBI)大环,包括三到六个PBI染料,我们用DWFI方法重建了多发色体系的分子结构。此外,我们还发现结构的不均一性和畸变率依赖于环的大小。我们的发现说明了使用DWFI来更深入地了解人工捕光分子系统的结构-性质关系。
Single-molecule defocused wide-field imaging (DWFI) has been demonstrated to be useful to determine molecular structure parameters, such as the orientations of transition dipole moments and the angular relationships between chromophores in multichromophoric molecular systems. For a series of acetylene-linked perylene bisimide (PBI) macrocycles with different ring size comprising three to six PBI dyes, we reconstructed the molecular structure of the multichromophoric system using DWFI method. Furthermore, we revealed that the structural heterogeneities and distortions depend on the ring size. Our findings illustrate the use of DWFI to gain deeper insight into the structure–property relationships of artificial light-harvesting molecular systems.
通过单分子光谱探测线性和三叶形三聚体苝二酰亚胺分子中的激子耦合。
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