摘要
以N-烷基咔唑作为电子给体和共轭桥中心,二米基硼作为端基电子受体,合成了两个V形A-π-D-π-A型新化合物:3,6-二{[(E)-2-(5-二米基硼)噻吩]乙烯基}-N-丁基-咔唑{N-butyl-3,6-bis{(E)-2-[5-(dimesitylboryl)thiophen-2-yl]-vinyl}-carbazole,BBTC}和3,6-二[(E)-(4-二米基硼)苯乙烯基]-N-己基-咔唑,{N-hexyl-3,6-bis[(E)-4-(dimesitylboryl)-styryl]-carbazole,BBSC}.这两个化合物在蓝绿光波段都有较强的荧光发射.光谱数据表明,扩大共轭体系并在端基引入含硼基团导致吸收谱和发射谱显著红移,并增大分子内电荷转移.
Two new V-shaped A-pi-D-pi-A type compounds, N-butyl-3,6-bis{(E)-2-[5-(dimesitylboryl)thiophen-2-yl]vinyl}carbazole (BBTC) and N-hexyl-3,6-bis[(E)-4-(dimesitylboryl)styryl]-carbazole (BBSC), with trivalent boron and carbazole as electron acceptor and the core of pi-conjugated bridge respectively, were synthesized. All these carbazole derivatives can emit strong blue-green fluorescence either in solution or in solid state. Both the absorption and emission band have been greatly red-shifted when trivalent boron was introduced at the terminal as electron acceptor or the phenyls in pi-conjugated bridge were replaced by thienyls.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2005年第14期1323-1328,i004,共7页
Acta Chimica Sinica
基金
国家自然科学基金(Nos.20472044
20172034)
高等学校博士点基金
中国科学院上海有机化学研究所有机氟化学重点实验室基金资助项目.
