Engineering ideal functional coordination polymers(CPs)via post-synthetic modification has emerged as a powerful synthetic strategy to achieve desirable functionalities and superior properties.In this work,we report a...Engineering ideal functional coordination polymers(CPs)via post-synthetic modification has emerged as a powerful synthetic strategy to achieve desirable functionalities and superior properties.In this work,we report a versatile ligand-strain modulation strategy that harnesses ligand strain to modify the skeleton conformation of CPs by metal node exchange.A one-dimensional(1D)crystalline CP,Ag(I)-L,featuring a curved ligand geometry,is prepared through a direct synthesis route.Exploiting polarization differences between different metal ions,we successfully regulate the ligand strain,enabling a metal node exchange process that yields another crystalline CP,Cu(I)-L,exhibiting a distinct linear parallel ligand orientation.Significantly,the complete exchange of AgNO_(3) to CuI is achieved via solid-liquid contact,while only partial exchange occurs under grinding.This ligand-strain engineering strategy will open new avenues in constructing functional systems and supramolecular materials through dynamic metal exchange and ligand-strain control.展开更多
基金the Natural Science Foundation of Jilin Province(No.20230101052JC)the National Natural Science Foundation of China(No.52173200)the Fundamental Research Funds for the Central Universities(No.2022-JCXK-13)for financial support.
文摘Engineering ideal functional coordination polymers(CPs)via post-synthetic modification has emerged as a powerful synthetic strategy to achieve desirable functionalities and superior properties.In this work,we report a versatile ligand-strain modulation strategy that harnesses ligand strain to modify the skeleton conformation of CPs by metal node exchange.A one-dimensional(1D)crystalline CP,Ag(I)-L,featuring a curved ligand geometry,is prepared through a direct synthesis route.Exploiting polarization differences between different metal ions,we successfully regulate the ligand strain,enabling a metal node exchange process that yields another crystalline CP,Cu(I)-L,exhibiting a distinct linear parallel ligand orientation.Significantly,the complete exchange of AgNO_(3) to CuI is achieved via solid-liquid contact,while only partial exchange occurs under grinding.This ligand-strain engineering strategy will open new avenues in constructing functional systems and supramolecular materials through dynamic metal exchange and ligand-strain control.
