Framework-Isomeric Metal–Organic Frameworks Built from Supermolecular Building Blocks for High Iodine Capture

IF 8.7 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY ACS Materials Letters Pub Date : 2024-12-19 DOI:10.1021/acsmaterialslett.4c01908

Shuting Chen, Yinyin Wang, Jieqiu Huang, Huanhuan Xie, Jingjing Yuan, Mengyao Song, Bin Yang, Qingqing Pang* and Binbin Tu*,

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Abstract

The supermolecular building block approach is powerful in constructing hierarchically porous metal–organic frameworks (MOFs). However, the structural diversity of these extended frameworks built from the same building blocks has never been explored. Herein, we propose a strategy by synergistically tuning the extending direction of metal–organic polyhedra (MOPs) and the linker conformation to achieve MOFs with framework isomerism. Six novel MOFs (CCNUF-1–6) based on an octahedral MOP and different tritopic pyridine-based linkers were successfully synthesized, among which the structural diversity increased with increasing linker flexibility. The topologies (sql, kgd, and rtl) of these materials are unprecedented in MOP-based MOFs. Moreover, highly porous CCNUF-2–6 showed remarkable iodine uptake capacities in the range of 2.51 to 3.11 g g^–1. This study emphasizes the potential of MOPs containing open metal sites as versatile platforms for the development of diversified hierarchically porous MOFs with enhanced functional properties.

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框架-异构体金属-有机框架构建的超分子构建块用于高碘捕获

超分子构建块方法在构建分层多孔金属有机框架（mof）方面具有强大的功能。然而，从相同的构建块构建的这些扩展框架的结构多样性从未被探索过。在此，我们提出了一种通过协同调整金属有机多面体（MOPs）的延伸方向和连接体构象来实现具有框架异构的MOPs的策略。基于八面体MOP和不同的三价吡啶连接体成功合成了6种新型mof (CCNUF-1-6)，其中结构多样性随着连接体柔韧性的增加而增加。这些材料的拓扑结构（sql、kgd和rtl）在基于mop的mof中是前所未有的。此外，高孔CCNUF-2-6在2.51 ~ 3.11 g g - 1范围内表现出显著的碘吸收能力。这项研究强调了含有开放金属位点的MOPs作为开发具有增强功能特性的多样化分层多孔mfs的通用平台的潜力。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.