Premium
A Porous Metal‐Organic Framework Based on Triazoledicarboxylate Ligands – Synthesis, Structure, and Gas‐Sorption Studies
Author(s) -
Wen Liang,
Shi Wei,
Chen Xitong,
Li Huanhuan,
Cheng Peng
Publication year - 2012
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201200127
Subject(s) - chemistry , zigzag , microporous material , sorption , metal organic framework , adsorption , porosity , bar (unit) , molecule , benzene , solvothermal synthesis , metal , inorganic chemistry , crystallography , topology (electrical circuits) , organic chemistry , geometry , mathematics , combinatorics , meteorology , physics
A new porous metal‐organic framework (MOF) {[CuL] · DMF · 2H 2 O} n [ 1a , H 2 L = 5‐(4 H ‐1,2,4‐triazol‐4‐yl)benzene‐1,3‐dicarboxylic acid; DMF = N , N ‐dimethylformamide] with zigzag‐shaped, narrow channels was prepared by solvothermal synthesis and structurally characterized. 1a has zigzag‐shaped, open channels with micropore sizes of approximately 5.6 × 4.6 Å 2 . The (3,6)‐connected network of 1a leads to an α‐PbO 2 (apo) topology. The adsorption properties (N 2 , H 2 , and CO 2 ) of the desolvated sample 1c have been studied. The results show that 1c has a highly porous structure and a high adsorption capacity: the total capture of CO 2 at 1 bar and 298 K is 22.01 wt.‐%, and the total H 2 uptake at 1 bar and 77 K is 1.46 wt.‐%. This high adsorption capacity can be attributed to strong interactions between the small gas molecules and the irregularly open channels with their zigzag shape and their narrow pore size.