Conjugated Nonplanar Copper-Catecholate Conductive Metal–Organic Frameworks via Contorted Hexabenzocoronene Ligands for Electrical Conduction,Journal of the American Chemical Society

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Conjugated Nonplanar Copper-Catecholate Conductive Metal–Organic Frameworks via Contorted Hexabenzocoronene Ligands for Electrical Conduction
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2023-04-17 , DOI: 10.1021/jacs.2c13835
Guolong Xing ₁ , Jingjuan Liu ₂ , Yi Zhou ₃ , Shuai Fu ₄ , Jia-Jia Zheng ₅ , Xi Su ₂ , Xingfa Gao ₅ , Osamu Terasaki ₃ , Mischa Bonn ₄ , Hai I Wang ₄ , Long Chen _{1,

2}

Affiliation

Conductive metal–organic frameworks (c-MOFs) with outstanding electrical conductivities and high charge carrier mobilities are promising candidates for electronics and optoelectronics. However, the poor solubility of planar ligands greatly hinders the synthesis and widespread applications of c-MOFs. Nonplanar ligands with excellent solubility in organic solvents are ideal alternatives to construct c-MOFs. Herein, contorted hexabenzocoronene (c-HBC) derivatives with good solubility are adopted to synthesize c-MOFs. Three c-MOFs (c-HBC-6O-Cu, c-HBC-8O-Cu, and c-HBC-12O-Cu) with substantially different geometries and packing modes have been synthesized using three multitopic catechol-based c-HBC ligands with different symmetries and coordination numbers, respectively. With more metal coordination centers and increased charge transport pathways, c-HBC-12O-Cu exhibits the highest intrinsic electrical conductivity of 3.31 S m^–1. Time-resolved terahertz spectroscopy reveals high charge carrier mobilities in c-HBC-based c-MOFs, ranging from 38 to 64 cm² V^–1 s^–1. This work provides a systematic and modular approach to fine-tune the structure and enrich the c-MOF family with excellent charge transport properties using nonplanar and highly soluble ligands.

中文翻译：

共轭非平面铜-邻苯二酚导电金属-有机骨架通过扭曲的六苯并晕配体用于导电

具有出色电导率和高电荷载流子迁移率的导电金属有机框架 ( c -MOF) 是电子和光电子领域有前途的候选者。然而，平面配体的溶解性差极大地阻碍了c -MOFs的合成和广泛应用。在有机溶剂中具有优异溶解度的非平面配体是构建c -MOF 的理想替代品。在此，采用具有良好溶解性的扭曲六苯并蒎烯 ( c -HBC) 衍生物来合成c -MOFs。三个c -MOF（c -HBC-6O-Cu、c -HBC-8O-Cu 和c-HBC-12O-Cu) 分别使用三种具有不同对称性和配位数的多主题儿茶酚基 c -HBC 配体合成了具有显着不同几何形状和堆积模式的c -HBC 配体。随着更多的金属配位中心和增加的电荷传输路径，c -HBC-12O-Cu 表现出最高的本征电导率 3.31 S m ^–1。时间分辨太赫兹光谱揭示了基于c -HBC 的c -MOF 的高电荷载流子迁移率，范围从 38 到 64 cm ² V ^–1 s ^–1。这项工作提供了一种系统化和模块化的方法来微调结构并丰富c-MOF 系列具有出色的电荷传输特性，使用非平面和高度可溶的配体。

更新日期：2023-04-17

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