Premium
Lanthanide–Organic Frameworks Constructed from an Unsymmetrical Tricarboxylate for Selective Gas Adsorption and Small‐Molecule Sensing
Author(s) -
Chen Feiyan,
Ling Yajing,
Song Chengling,
He Yabing,
Lan Youzhao,
Feng Yunlong
Publication year - 2016
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.201501113
Subject(s) - isostructural , chemistry , metal organic framework , lanthanide , thermogravimetric analysis , isophthalic acid , powder diffraction , adsorption , nitrobenzene , molecule , crystallography , ligand (biochemistry) , single crystal , inorganic chemistry , luminescence , crystal structure , organic chemistry , catalysis , materials science , polyester , ion , biochemistry , receptor , optoelectronics , terephthalic acid
By using the new unsymmetrical tricarboxylate ligand 5‐(6‐carboxynaphthalen‐2‐yl)isophthalic acid (H 3 L), three lanthanide–organic frameworks, [LnL(H 2 O) 2 ] · DMF · H 2 O [Ln = Eu ( 1 ), Tb ( 2 ), and Ho ( 3 ); DMF = N , N ‐dimethylformamide], have been synthesized solvothermally and characterized by single‐crystal X‐ray diffraction, powder X‐ray diffraction, thermogravimetric analysis (TGA), FTIR spectroscopy, and elemental analysis. The single‐crystal X‐ray diffraction analysis showed that the three metal–organic frameworks (MOFs) are isostructural and display 3D networks with the (3,6)‐connected flu‐type topology. Furthermore, the gas adsorption and photoluminescence properties of the three MOFs were investigated. The compounds exhibited selective adsorption toward CO 2 over CH 4 at ambient temperature and different luminescence responses to small molecules, especially nitrobenzene.