Liquid crystals in the series of 2,3,6,7-tetraalkoxytriphenylenes

被引：7

作者：

Rose, B ^{[1
]}

Meier, H ^{[1
]}

机构：

[1] Univ Mainz, Inst Organ Chem, D-55099 Mainz, Germany

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 1998年 / 53卷 / 09期

关键词：

triphenylenes; photoconductivity; discotic mesogens; push-pull substitution;

D O I：

10.1515/znb-1998-0915

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Stepwise bromination of the triphenylene 1 leads regioselectively to the monobromo and the dibromo compound 2 and 3, respectively (Scheme 1). In contrast to 1 and 2, the dibromo derivative 3 as well as the nitrile 4, obtained from 3 and CuCN form thermotropic mesophases D-h. On irradiation of 3 and 4 a photocurrent can be measured in the crystalline state and an enhanced photocurrent in the LC phase.

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页码：1031 / 1034

页数：4

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