Liquid crystals from shape-persistent porphyrin stars with intrinsic free space

被引：16

作者：

Ghosh, Tapas ^{[1
]}

Gerbig, Lisa ^{[1
]}

Lambov, Martin ^{[1
]}

Dechant, Moritz ^{[1
]}

Lehmann, Matthias ^{[1
,2
]}

机构：

[1] Univ Wurzburg, Inst Organ Chem, D-97074 Wurzburg, Germany

[2] Univ Wurzburg, Ctr Nanosyst Chem, D-97074 Wurzburg, Germany

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2020年 / 8卷 / 16期

关键词：

SOLAR-CELLS; DERIVATIVES; COMPLEXES; BEHAVIOR; DIMER;

D O I：

10.1039/c9tc07086a

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A small library of shape-persistent, conjugated star-shaped liquid crystals (LCs) with a zinc porphyrin core was successfully synthesized. Different conjugated arms are attached in themeso-positions. The self-assembly is at the limit between liquid crystals and soft crystal phases owing to the space-filling requirement. A model indicates the formation of dimers in double helices. A remarkable mesogen with thiophene linked directly to the porphyrin core generates J-aggregates in solution, which persist in the solid state. In the liquid crystal the J-aggregates disappear but can be reversibly reobtained by solvent treatment.

引用

页码：5562 / 5571

页数：10

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