Chu Jin-Peng, Ma Zhen-Sha, Xia Jun, Zhou Kang, Zhang Zhi-Qiang, Liu Xiao-Yuan
School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshan Zhong Road, Anshan 114051, P. R. China.
Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Blvd, Nanshan District, Shenzhen 518055, P. R. China.
Dalton Trans. 2025 Sep 9;54(35):13035-13039. doi: 10.1039/d5dt01810b.
As one of the most studied subclasses of metal-organic frameworks (MOFs), zirconium-based MOFs (Zr-MOFs) have aroused extensive interest due to unlimited variety of organic linkers and diversity of structures, compositions and functions induced by varying Zr-oxo clusters. It has been proven that organic linker-directed precise control over the composition, underlying net and porosity of the resultant Zr-MOFs is essential to achieve desired crystalline structures, functions or enhanced performances. Herein, we designed and constructed a new Zr-MOF (HIAM-4062) possessing a topology using one hexatopic carboxylate linker. In the crystal structure of HIAM-4062, only four out of six carboxylic groups from one organic linker are coordinated with the 8-c Zr clusters, while the other two carboxylic groups are uncoordinated and hang in the hexagonal channels. HIAM-4062 exhibits bright emission, great porosity, and excellent chemical and thermal stability. Nanosized HIAM-4062 can be utilized as a useful chemical sensor for detecting glutathione with high sensitivity and selectivity.
作为金属有机框架（MOF）中研究最多的子类之一，锆基金属有机框架（Zr-MOF）因其有机连接体种类无限以及由不同的锆氧簇诱导产生的结构、组成和功能的多样性而引起了广泛关注。事实证明，通过有机连接体对所得Zr-MOF的组成、基本网络和孔隙率进行精确控制对于实现所需的晶体结构、功能或增强性能至关重要。在此，我们设计并构建了一种使用一种六齿羧酸盐连接体的具有 拓扑结构的新型Zr-MOF（HIAM-4062）。在HIAM-4062的晶体结构中，来自一个有机连接体的六个羧基中只有四个与8-c锆簇配位，而另外两个羧基未配位并悬于六边形通道中。HIAM-4062表现出明亮的发光、高孔隙率以及优异的化学和热稳定性。纳米级的HIAM-4062可用作一种有用的化学传感器，用于高灵敏度和高选择性地检测谷胱甘肽。
