π-conjugated twin molecules based on truxene:: Synthesis and optical properties

被引：52

作者：

Cao, XY ^{[1
]}

Zhang, W ^{[1
]}

Zi, H ^{[1
]}

Pei, J ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Minist Educ, Key Lab Bioorgan Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

ORGANIC LETTERS | 2004年 / 6卷 / 26期

关键词：

D O I：

10.1021/ol048144w

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[Graphics] A series of novel extended pi-conjugated twin molecules based on 10,15-dihydro-5H-diindeno[1,2-alpha;1',2'-c]fluorene (truxene) have been prepared via Pd(0)-catalyzed Suzuki coupling, Sonogashira coupling, and McMurry reactions, respectively. 9,9'-Spirobifluorenylene, ethynylene, and vinylene groups as the bridge are introduced to connect both truxene moieties to understand the effect of the large steric chromophores on the properties of the desired materials. The investigation of optical properties of TM1-3 by UV-vis and photoluminescent spectroscopy demonstrates that the optical properties of the twin molecules are strongly affected by the pi-linkages.

引用

页码：4845 / 4848

页数：4

共 90 条

[1] BUCKYBOWLS. 2. TOWARD THE TOTAL SYNTHESIS OF BUCKMINSTERFULLERENE (C-60) - BENZ[5,6]-AS-INDACENO-[3,2,1,8,7-MNOPQR]INDENO[4,3,2,1-CDEF]CHRYSENE [J].