VISIBLE AND NEAR-INFRARED CHIROPTICAL GELS CONTAINING ELECTROCHROMIC ANTHRAQUINONE IMIDE GROUPS

Jia Zheng; Yi-jun Zheng; Xin-hua Wan; Zhi Yuan Wang

doi:10.1007/s10118-012-1128-0

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VISIBLE AND NEAR-INFRARED CHIROPTICAL GELS CONTAINING ELECTROCHROMIC ANTHRAQUINONE IMIDE GROUPS

PAPER | Updated：2023-01-03

- VISIBLE AND NEAR-INFRARED CHIROPTICAL GELS CONTAINING ELECTROCHROMIC ANTHRAQUINONE IMIDE GROUPS
- Chinese Journal of Polymer Science Vol. 30, Issue 2, Pages: 328-336(2012)
- Affiliations：
  
  a.Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  b.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Author bio：
  
  **Xin-hua Wan (宛新华), E-mail: xhwan@pku.edu.cn
- Funds：
- DOI：10.1007/s10118-012-1128-0
  CLC：
- Received：30 June 2011，
  
  Revised：2011-08-08，
  
  Accepted：15 August 2011，
  
  Published：2012-03
- Accepted：
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Jia Zheng, Yi-jun Zheng, Xin-hua Wan, et al. VISIBLE AND NEAR-INFRARED CHIROPTICAL GELS CONTAINING ELECTROCHROMIC ANTHRAQUINONE IMIDE GROUPS[J]. Chinese Journal of Polymer Science, 2012, 30(2): 328-336.
DOI：

Jia Zheng, Yi-jun Zheng, Xin-hua Wan, et al. VISIBLE AND NEAR-INFRARED CHIROPTICAL GELS CONTAINING ELECTROCHROMIC ANTHRAQUINONE IMIDE GROUPS[J]. Chinese Journal of Polymer Science, 2012, 30(2): 328-336. DOI： 10.1007/s10118-012-1128-0.

摘要

Abstract

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 compound

-[3

-cholest-5-en-3-yl

-(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.

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