Affiliation:
1. State Key Laboratory of Structural Chemistry Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Fuzhou Fujian 350002 P. R. China
2. Chinese Academy of Sciences University of Chinese Academy of Sciences Beijing 100049 P. R. China
3. Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry Xiamen Fujian 361005 P. R. China
Abstract
AbstractAlthough metal–organic polyhedra (MOPs) expansion has been studied to date, it is still a rare occurrence for their porous intermolecular assembly for iodine capture. The major limitation is the lack of programmable and controllable methods for effectively constructing and utilizing the exterior cavities. Herein, the goal of programmable porous intermolecular assembly is realized in the first family of aluminum oxo polyhedrons (AlOPs) using ligands with directional H‐bonding donor/acceptor pairs and auxiliary alcohols as structural regulation sites. The approach has the advantage of avoiding the use of expensive edge‐directed ditopic and face‐directed tritopic ligands in the general synthesis strategy of MOPs. Combining theoretical calculations and experiments, the intrinsic relationship is revealed between alcohol ligands and the growth mechanism of AlOPs. The maximum I2 uptake based on the mass gain during sorption corresponds to 2.35 g g−1, representing the highest reported I2 sorption by an MOP. In addition, it can be easily regenerated and maintained the iodine sorption capacity, revealing its further potential application. This method of constructing stable and programmable porous materials will provide a new way to solve problems such as radionuclide capture.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Fujian Province
Youth Innovation Promotion Association of the Chinese Academy of Sciences
Subject
Biomaterials,Biotechnology,General Materials Science,General Chemistry