Exceptionally long-range self-assembly of hexa-peri-hexabenzocoronene with dove-tailed alkyl substituents

被引：139

作者：

Pisula, W ^{[1
]}

Kastler, M ^{[1
]}

Wasserfallen, D ^{[1
]}

Pakula, T ^{[1
]}

Müllen, K ^{[1
]}

机构：

[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 26期

关键词：

D O I：

10.1021/ja048351r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The substitution of a hexa-peri-hexabenzocoronene by bulky, space-demanding, 2-decyltetradecyl side chains proved to be an effective procedure to influence the thermal and self-aggregation behavior. The extremely large steric requirement of the introduced side chains modulated the aggregation and resulted in a dramatic lowering of the isotropization temperature and a higher solubility. As an additional consequence of the exceptional, long-range self-aggregation of the discotic molecule, spherulite formation was observed during crystallization by polarized light microscopy. Macroscopic self-assembly was induced by zone crystallization of the material, leading to aligned columnar superstructures as revealed by 2D-WAXS experiments. These extraordinary properties have not yet been reported for a discotic columnar material, making this compound very promising for application in electronic devices. Copyright © 2004 American Chemical Society.

引用

页码：8074 / 8075

页数：2

共 28 条

[1] FAST PHOTOCONDUCTION IN THE HIGHLY ORDERED COLUMNAR PHASE OF A DISCOTIC LIQUID-CRYSTAL [J].