From Coordination Cages to a Stable Crystalline Porous Hydrogen‐Bonded Framework

• Published in: Chemistry : a European journal Vol. 23; no. 20; pp. 4774 - 4777
• Main Authors: Ju, Zhanfeng, Liu, Guoliang, Chen, Yu‐Sheng, Yuan, Daqiang, Chen, Banglin
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 06.04.2017; ChemPubSoc Europe
• Subjects: Assembly; Cages; charge assistant; Chemistry; Construction; coordination cage; Covalent bonds; Crystal structure; Hydrogen bonding; Hydrogen bonds framework; INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Porosity; porous material; Porous materials; Single crystals; stable framework; porous material; Hydrogen bonds framework; coordination cage; charge assistant; stable framework
• ISSN: 0947-6539; 1521-3765
• DOI: 10.1002/chem.201700798

A stable framework has been constructed through multiple charge‐assisted H‐bonds between cationic coordination cages and chloride ions. The framework maintained its original structure upon desolvation, which has been established by single‐crystal structure analysis. This is the first fully characterized stable porous framework based on coordination cages after desolvation, with a moderately high Brunauer–Emmett–Teller (BET) surface area of 1201 m2 g−1. This work will not only give a light to construct stable porous frameworks based on coordination cages and thus broaden their applications, but will also provide a new avenue to the assembly of other porous materials such as porous organic cages and hydrogen‐bonded organic frameworks (HOFs) through non covalent bonds. A web of H‐bonds: A stable porous hydrogen‐bonded framework based on coordination cages has been constructed by multiple charge‐assisted H‐bonds. Single‐crystal X‐ray diffraction analysis and N2 adsorption measurements show that both intrinsic and extrinsic pores in the framework are maintained to enforce the moderately high porosity.