Visible and near-infrared chiroptical gels containing electrochromic anthraquinone imide groups
Visible and near-infrared chiroptical gels containing electrochromic anthraquinone imide groups
复制标题
含有电致变色蒽醌酰亚胺基团的可见光和近红外手性光学凝胶
DOI：
10.1007/s10118-012-1128-0
复制
发表时间：
2012-01
影响因子：
4.3
通讯作者：
Wang, Zhi Yuan
中科院分区：
文献类型：
--
作者：
Zheng, Jia;Zheng, Yi-jun;Wan, Xin-hua;Wang, Zhi Yuan
合成并表征了一种含蒽醌亚胺(AQI)基团的胆固醇型有机凝胶剂。它在低浓度的乙腈中自组装成手性凝胶，表现出电致变色和手性性质的组合。在AQI700 mV下电化学还原后，凝胶在820nm处出现新的吸收带，对应于−阴离子的π*-π*(SOMOLUMO)跃迁和同一光谱区的强负Cotton效应。在−10 0 0 mV下，随着吸收光谱的变化，在5 0 0~80 0 nm范围内出现了一个具有负棉花效应的新的Cd带。因此，利用电致变色的AQI发色团作为开关响应单元，以compoundN-[3β-cholest-5-en-3-ylN-(2-aminoethyl)[氨基甲酸酯]-2，3-二羧酰亚胺的稳定凝胶作为手性支架，实现了工作在可见光和近红外区域的氧化还原触发手性开关。
A cholesterol-based organogelator bearing an anthraquinone imide (AQI) group was synthesized and characterized. It self-assembled into chiral gels in acetonitrile at low concentrations, which displayed a combination of electrochromic and chiroptical properties. Upon electrochemical reduction at −700 mV, the gel exhibited new absorption bands at around 820 nm corresponding to π*-π* (SOMO→LUMO) transitions of the radical anion of AQI and strong negative Cotton effects in the same spectral region. With further reduction at −1000 mV, a new CD band with a negative Cotton effect in the range from 500 nm to 800 nm appeared concomitant with the variation of absorption spectrum. Thus, with the use of electrochromic AQI chromophore as a switch-responsive unit and the stable gel of compoundN-[3β-cholest-5-en-3-ylN-(2-aminoethyl) carbamate] anthraquinone-2,3-dicarboxylic imide as a chiral scaffold, a redox-triggered chiroptical switch operating in visible and near-infrared region was realized.
登录
查看更多内容
影响因子：
1.9
作者：
Fu Lefeng;Deng Zui-liang;Z. Yi;Zheng Bai-cun;Yu Jianguo
通讯作者：
Fu Lefeng;Deng Zui-liang;Z. Yi;Zheng Bai-cun;Yu Jianguo
近红外电致变色和手性光学开关材料：含有堆叠萘二酰亚胺发色团的手性有机凝胶的设计、合成和表征
影响因子：
8.6
作者：
Wang, Zhi Yuan;Zheng, Jia;Qiao, Wenqiang;Gao, Jian Ping;Wan, Xinhua
通讯作者：
Wan, Xinhua
层层组装近红外电致变色可变光衰减器
影响因子：
4.3
作者：
Zheng, Jia;Zheng, Yi-jun;Wan, Xin-hua
通讯作者：
Wan, Xin-hua
DOI：
10.1002/chin.199811319
发表时间：
1998-03
期刊：
ChemInform
影响因子：
--
作者：
P. Terech;R. Weiss
通讯作者：
P. Terech;R. Weiss
DOI：
10.1002/chin.200602247
发表时间：
2006-01
期刊：
ChemInform
影响因子：
--
作者：
N. Sangeetha;U. Maitra
通讯作者：
N. Sangeetha;U. Maitra