Acta Chimica Sinica ›› 2021, Vol. 79 ›› Issue (11): 1409-1414.DOI: 10.6023/A21100474 Previous Articles    



赵彦武*(), 李星, 张富强, 张祥   

  1. 山西师范大学 化学与材料科学学院 磁性分子与磁信息材料教育部重点实验室 太原 030031
  • 投稿日期:2021-10-25 发布日期:2021-10-27
  • 通讯作者: 赵彦武
  • 基金资助:

Precise Control of the Dimension of Homochiral Metal-Organic Frameworks (MOFs) and Their Luminescence Properties

Yan-Wu Zhao(), Xing Li, Fu-Qiang Zhang, Xiang Zhang   

  1. Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemistry & Material Science, Shanxi Normal University, Taiyuan 030031, China
  • Received:2021-10-25 Published:2021-10-27
  • Contact: Yan-Wu Zhao
  • Supported by:
    Project supported by 1331 Project of Shanxi Province

To precisely control the construction of different dimensional and topological structure represents one of the most challenging issues facing synthetic chemistry nowadays, especially synthesizing different dimensions of chiral materials with identical compositions. Self-assembly of structural dimension of hybrid materials based on coordination chemistry has been regarded as an effective means addressed this issue. Herein, self-assembly of Zn salts with R,R-CHCAIP (5,5′-((1R,2R)-cyclohexane dicarbonyl bis(azanediyl)) diisophthalic acid) generates a new 3D homochiral metal-organic framework Zn1.5(R,R-CHCAIP)(H2O)2 (HMOF-4) that uses the same ligand and metal as our reported 1D tube Zn2(R,R-CHCAIP)Py2(H2O) (HMOF-2) and 2D layer [Zn4(R,R-CHCAIP)2(4,4′-bipy)2(H2O)5]•5H2O•3DMA (HMOF-3, DMA, N,N-dimethylacetamide) under the solvothermal reaction at high temperature (100 ℃). Based on a new strategy of the synergistic action of the auxiliary ligand and temperature, the structural diversity for HMOF-2, HMOF-3 and HMOF-4 from 1D to 2D and 3D is modulated during the assembly process, and the resulting multidimensional homochiral MOFs with identical composition are extremely rare in currently reported MOFs with different dimensions. The fluorescence of HMOF-4 and HMOF-2, HMOF-3 is investigated, and their fluorescent mechanisms are interpreted by time-dependent density functional theory (TDDFT) calculation. The tiny difference of their fluorescent emission spectra indicates the dimensions of Zn-MOFs have little effect on fluorescence. This work provides a distinctive construction means for precise control of the different dimension of homochiral MOFs.

Key words: precise control, homochiral metal-organic frameworks (MOFs), dimension, synergistic action, fluorescence