Volume 42, Issue 11 pp. 1260-1266
Concise Report

Induced Absolute Configuration of Achiral Tetradentate Ligands in Metal–Organic Frameworks for Circularly Polarized Luminescence

Hong-Ru Fu

Hong-Ru Fu

College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, Henan, 471934 China

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 China

Search for more papers by this author
Dan-Dan Ren

Dan-Dan Ren

College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, Henan, 471934 China

College of Materials & Chemical Engineering, China Three Gorges University, Yichang, Hubei, 443002 China

Search for more papers by this author
Kun Zhang

Kun Zhang

College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, Henan, 471934 China

College of Materials & Chemical Engineering, China Three Gorges University, Yichang, Hubei, 443002 China

Search for more papers by this author
Hong Chen

Hong Chen

College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, Henan, 471934 China

Search for more papers by this author
Xiaoyan Lu

Xiaoyan Lu

College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, Henan, 471934 China

Search for more papers by this author
Qing-Rong Ding

Corresponding Author

Qing-Rong Ding

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 China

E-mail: [email protected]; [email protected]Search for more papers by this author
Lu-Fang Ma

Corresponding Author

Lu-Fang Ma

College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, Henan, 471934 China

E-mail: [email protected]; [email protected]Search for more papers by this author
First published: 09 February 2024
Citations: 18

Comprehensive Summary

The crystallization of chiral molecules is of great significance to understand the origin and evolution of hierarchical chirality and reveal the relationships between structural chirality and circularly polarized luminescence (CPL) activity. Here, we report two pairs of chiral metal–organic frameworks (MOFs) (DCF-17/LCF-17, DCF-18/LCF-18) by utilizing tetradentate ligands tetra(3-imidazoylphenyl)ethylene (TIPE) and 4,4'-[4',5'-bis[4-(4-pyridinyl)phenyl][1,1':2',1”-terphenyl]-4,4”-diyl]bis[pyridine] (TPPP) as linkers. It can be observed that the spontaneous resolution of the achiral ligands is converted into the induced resolution, and the ligands form the absolute configuration by using enantiopure camphoric acid (cam) as chiral induced reagent (CIR). As a result, the racemate MOFs can be driven to generate absolute homochiral crystallization. Another two achiral MOFs [Cd(D-cam)(TPPP)0.5] (AF-1, AF = achiral framework) and [Cd(L-cam)(TPPP)0.5] (AF-2) were prepared. The position disorder of D/L-cam skeleton causes the generation of nonchiralization, further leading to disappearance of symmetry breaking of TPPP. For the perspective of structure, this is the first report which reveals the chiral transfer and nonchiralization between chiral induced agents and tetradentate ligands. Besides, DCF-17 and LCF-17 show CPL with luminescence dissymmetry factor (glum) of –1.0 × 10-2 and +9.2 × 10–3, respectively. This work provides the useful evidences to reveal the induced chiral crystallization and the construction of CPL-active crystalline materials.image

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.