Abstract
A Zn(II)-based metal–organic framework [Zn3(TCA)2(DPE)]·DMF·6H2O (referred to as BUT-161) has been solvothermally synthesized by the reaction of a tritopic carboxylic acid 4,4′,4″-nitrilotribenzoic acid (H3TCA), an ancillary ditopic pyridine ligand 1,2-di(4-pyridyl)ethylene (DPE) and Zn(NO3)2·6H2O. The framework of BUT-161 shows a pillar-layered structure, where two-dimensional (2D) layers constructed from trimeric Zn3(–CO2)6 clusters and TCA3− ligands are topologically (3,6)-connected net, and the layers are further pillared by the DPE linkers. The resulting 3D framework contains 1D channels along the b axis. Powder X-ray diffraction (PXRD) patterns and gas adsorption studies reveal that the activated phase of BUT-161, as BUT-161a has permanent porosity with a Brunauer-Emmett-Teller (BET) specific surface area of 308 m2 g−1, although the framework structure shrinks (structure transformation) after guest removal. In addition, it has been found that BUT-161a can selectively adsorb CO2 over N2 or CH4.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
