Syntheses, structures and luminescent properties of decorated lanthanide metal-organic frameworks of (E)-4,4′-(ethene-1,2-diyl)dibenzoic acids

The functionalized ligand (E)-4,4[prime or minute]-(1,4-bis(methylthio)but-2-ene-2,3-diyl)dibenzoic acid (H2LS) and four metal-organic frameworks, [M2(LH)3(DMSO)4][middle dot]xDMSO (6 and 7 for M = Tb3+, Eu3+ respectively; LH = (E)-4,4"-(ethene-1,2-diyl)dibenzoate) and [M2(LS)3(DMF)2(H2O)2] (8...

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Bibliographic Details
Published in:CrystEngComm 2011-01, Vol.13 (6), p.1821-1830
Main Authors: Li, Yu, Song, Datong
Format: Article
Language:English
Subjects:
Crystal lattices
Crystals
Displays
Lanthanides
Lattices
Ligands
Luminescence
Metal-organic frameworks
Solvents
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Summary:The functionalized ligand (E)-4,4[prime or minute]-(1,4-bis(methylthio)but-2-ene-2,3-diyl)dibenzoic acid (H2LS) and four metal-organic frameworks, [M2(LH)3(DMSO)4][middle dot]xDMSO (6 and 7 for M = Tb3+, Eu3+ respectively; LH = (E)-4,4"-(ethene-1,2-diyl)dibenzoate) and [M2(LS)3(DMF)2(H2O)2] (8 and 9 for M = Eu3+, Tb3+) have been synthesized and characterized. All four MOFs adopt the anticipated connectivity, but the fold of interpenetration in each MOF crystal varies as a result of different solvent inclusion and ligand functionality. Compounds 6 and 7 contain a large amount of solvent molecules and tend to lose solvent in air. Compounds 8 and 9 are stable crystals without lattice solvent molecules in the crystals; the coordinating solvent molecules can be reversibly removed and replenished with the skeletons intact. All four MOFs show mainly the ligand-based luminescence, while 8 also displays metal-based luminescence.
ISSN:1466-8033
1466-8033
DOI:10.1039/C0CE00750A