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A Polyhedron‐based Metal‐Organic Framework showing high CO 2 Adsorption Capacity
Author(s) -
Gao CongLi
Publication year - 2018
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201800224
Subject(s) - metal organic framework , octahedron , crystallography , dimethylacetamide , powder diffraction , sorption , adsorption , thermogravimetric analysis , gravimetric analysis , single crystal , materials science , elemental analysis , chemistry , diffraction , crystal structure , inorganic chemistry , organic chemistry , physics , solvent , optics
A novel porous copper‐based metal‐organic framework {[Cu 2 (TTDA) 2 ]*(DMA) 7 } n ( 1 ) (DMA = N , N ‐dimethylacetamide) was designed and synthesized via the combination of a dual‐functional organic linker 5′‐(4‐(4H‐1,2,4‐triazol‐4‐yl)phenyl)‐[1,1′:3′,1′′‐terphenyl]‐4,4′′‐dicarboxylic acid (H 2 TTDA) and a dinuclear Cu II paddle‐wheel cluster. This MOF is characterized by elemental analysis, powder X‐ray diffraction (PXRD), thermo gravimetric analysis (TGA), and single‐crystal X‐ray diffraction. The framework is constructed from two types of cages (octahedral and cuboctahedral cages) and exhibits two types of circular‐shaped channels of approximate size of 5.8 and 11.4 Å along the crystallographic c axis. The gas sorption experiments indicate that it possesses a large surface area (1687 m 2 · g –1 ) and high CO 2 adsorption capacities around room temperature (up to 172 cm 3 · g –1 at 273 K and 124 cm 3 · g –1 at 298 K).