A pillararene-based metal-organic framework material and a preparation method thereof

By introducing columnar aromatic ligands to coordinate with cuprous iodide, PMOF1, PMOF2, and PMOF3 materials were constructed, solving the problem of insufficient structural selectivity and reproducibility in the synthesis of Cu(I)-MOF materials. This enabled selective differentiation and fluorescence response of 1-bromoalkanes and 2-bromoalkanes, improved the stability and reusability of the materials, and expanded their applications in optoelectronic devices and adsorption separation.

CN121591647BActive Publication Date: 2026-06-16JILIN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JILIN UNIVERSITY
Filing Date
2026-01-29
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing Cu(I)-MOF materials suffer from insufficient structural selectivity and reproducibility during synthesis, resulting in poor stability and functional continuity. Furthermore, their application in optoelectronic devices and adsorption separation is limited, lacking versatility and controllability.

Method used

By introducing columnar aromatic ligands to coordinate with cuprous iodide, PMOF1, PMOF2, and PMOF3 materials were constructed. Using compound PY2-P5 as a ligand, metal-organic framework materials with stable structures and functional properties were prepared, enabling the controllable construction of various copper clusters and diverse topologies.

Benefits of technology

The material achieves selective differentiation between 1-bromoalkanes and 2-bromoalkanes. During adsorption, it exhibits a significant blue-shifted fluorescence signal, which improves the visualization of molecular recognition and sensing, and enhances the stability and reusability of the material. This provides an efficient approach for the selective detection and separation of volatile organic compounds.

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Abstract

The application belongs to the technical field of metal organic framework materials, and provides a pillararene-based metal organic framework material and a preparation method thereof, wherein compounds PY2-P5 are used as ligands, and the material is one of PMOF1, PMOF2 and PMOF3; the PMOF1 has a Cu4I4 cubic tetramer structure; the PMOF2 has a Cu4I4 ladder tetramer structure; and the PMOF3 has a CuI one-dimensional chain structure. The application introduces a pillararene ligand and controls the coordination mode of the pillararene ligand and cuprous iodide, constructs a metal organic framework material with stable structure and functional characteristics, has double advantages of host recognition sites and fluorescence signal response, can realize selective distinction of 1-bromoalkane and 2-bromoalkane, and exhibits a significant fluorescence blue shift signal in an adsorption process, so as to realize visualization of molecular recognition and sensing. Not only the excellent molecular recognition ability of the pillararene is maintained, but also the stability and reusability of the material are improved through framework, so as to provide a new way for selective detection and separation of volatile organic compounds.
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Citation Information

Patent Citations

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