Details

Autor(en) / Beteiligte

• Chen, Feiyan
• Ling, Yajing
• Song, Chengling
• He, Yabing
• Lan, Youzhao
• Feng, Yunlong

Titel

Lanthanide-Organic Frameworks Constructed from an Unsymmetrical Tricarboxylate for Selective Gas Adsorption and Small-Molecule Sensing

Ist Teil von

• European journal of inorganic chemistry, 2016-02, Vol.2016 (4), p.503-508

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

2016

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• By using the new unsymmetrical tricarboxylate ligand 5‐(6‐carboxynaphthalen‐2‐yl)isophthalic acid (H3L), three lanthanide–organic frameworks, [LnL(H2O)2]·DMF·H2O [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 CO2 over CH4 at ambient temperature and different luminescence responses to small molecules, especially nitrobenzene. The first series of three‐dimensional lanthanide organic frameworks with flu‐type topology are constructed from the new unsymmetrical tricarboxylate 5‐[6‐(carboxylate)naphthalene‐2‐yl]isophthalic acid and exhibit moderately selective CO2/CH4 gas separation and highly sensitive luminescent sensing of nitrobenzene.