Self-assembled single- and double-stack π-aggregates of chlorophyll derivatives on highly ordered pyrolytic graphite

被引：51
作者：
Huber, Valerie
Lysetska, Marina
Wuerthner, Frank
机构：
[1] Univ Wurzburg, Inst Organ Chem, D-97074 Wurzburg, Germany
[2] Univ Wurzburg, Rontgen Res Ctr Complex Mat Syst, D-97074 Wurzburg, Germany
来源：
SMALL | 2007年 / 3卷 / 06期
关键词：
aggregation; chlorophyll; dyes; self-assembly; zinc chlorins;
D O I：
10.1002/smll.200600497
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The highly efficient, light-harvesting antennae systems present in chloro somes of green phototrophic bacteria, such as Chloroflexus aurantiacus, serve as a model for the design of bioinspired nanostructured materials. A semisynthetic zinc chlorin, derived from natural chlorophyll a, is used as a building block that self-assembles into excitonically coupled chromophore stacks. Temperature-dependent UV/Vis and circular dichroism spectroscopic measurements show the reversible formation of soluble chiral aggregates of this new zinc chlorin dye. High-resolution scanning tunneling microscopy and atomic force microscopy studies reveal the formation of two types of well-ordered ac-stacked aggregates on highly ordered pyrolytic graphite.
引用
收藏
页码：1007 / 1014
页数：8
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