Chinese Journal of Organic Chemistry Previous Articles    

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一种具有非稠合氮杂环端基的A-D-A型分子的合成及性能研究

刘文睿a, 音正春b, 叶世棋a, 徐智伟a, 陈龙a, 王官武a,b,c,*   

  1. a中国科学技术大学化学系 安徽合肥 230026;
    b功能分子固体教育部重点实验室、分子基材料安徽省重点实验室、安徽师范大学化学与材料科学学院 安徽芜湖 241002;
    c兰州大学应用有机化学国家重点实验室 甘肃兰州 730000
  • 收稿日期:2024-09-23 修回日期:2024-10-23
  • 基金资助:
    国家自然科学基金(No. 22271271)资助项目.

Synthesis and Properties of Novel A-D-A Type Molecules with Non-Fused Azacyclic End Groups

Wen-Rui Liua, Zheng-Chun Yinb, Shi-Qi Yea, Zhiwei Xua, Long Chena, Guan-Wu Wanga,b,c,*   

  1. aDepartment of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026;
    bKey Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, and School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002;
    cState Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000
  • Received:2024-09-23 Revised:2024-10-23
  • Contact: * E-mail: gwang@ustc.edu.cn.
  • Supported by:
    National Natural Science Foundation of China (No. 22271271) .

Acceptor-donor-acceptor (A-D-A) type molecules, of which the novel non-fused azacyclic end-group pyrazolinones were modified with chlorine substitution on the phenyl ring, were synthesized. The non-fused azacyclic end-group pyrazolinones have the advantages of simple synthesis steps, low cost and environmental friendliness, compared to the classical end-group dicyanomethyleneindianone. The properties of the synthesized A-D-A type molecules with non-fused azacyclic end groups were characterized by theoretical calculation, UV-vis absorption, cyclic voltammetry, X-ray diffraction and space charge limited current. It was shown that the strong UV-vis absorptions of the synthesized A-D-A type molecules were located in the wavelength range of 500-700 nm, with a moderate band gap of nearly 1.7 eV. At the same time, the influence of end-group chlorination on the properties of A-D-A type molecules was compared and explored. It was proven that this kind of A-D-A type molecules with non-fused azacyclic end groups have the potential to be applied as interfacial modified layer of the active layer in perovskite solar cell devices.

Key words: A-D-A type molecule, N-type semiconductor, Non-fused end groups, Medium bandgap