Synthesis, crystal structure and photoluminescent properties of four lanthanide 5-nitroisophthalate coordination polymers
- Department of Chemistry, Tongji University, Shanghai 200092 (China)
- Department of Chemistry, College of Science, Shanghai University, Shanghai 200444 (China)
Four new lanthanide coordination polymers, [Y(Hnip)(nip)(H{sub 2}O)].H{sub 2}O (1), [Ln(Hnip)(nip)(H{sub 2}O){sub 2}].2H{sub 2}O [Ln=Eu(2), Tb(3)] and [Y(nip){sub 2}].(H{sub 2}4,4'-bpy){sub 0.5} (4) [5-nip=5-nitroisophthalate, 4,4'-bpy=4,4'-bipyridine], have been hydrothermally synthesized and structurally characterized. Compound 1 features novel lanthanide-carboxylate groups chains composed of three samehanded helical strands intersecting each other through hinged lanthanide atoms, and these chains are cross-linked by phenylene moieties of carboxylate ligands into a 2D layer structure. Compounds 2 and 3 are isomorphous, and contain 1D catenanelike Ln-O-C-O-Ln chains, which are interconnected by phenylene moieties into 2D layer structures. Compound 4, however, displays a 3D architecture sustained by strong hydrogen bonding interactions between the protonated 4,4'-bpy and the carboxyl oxygen atom from [Y{sub 2}(nip){sub 4}]{sup 2-} with 2D layer structure, and 4,4'-bpy as the guest molecules exist in bilayer channel. The studies for the thermal stabilities of the four compounds show that compound 4 is more stable than other compounds. Compound 2 emits characteristic red luminescence of Eu{sup 3+} ions at room temperature, and its luminescent lifetime and quantum efficiency has been determined. - Graphical abstract: Four lanthanide 5-nitroisophthalate coordination polymers have been hydrothermally prepared and resent different structures and thermal stabilities and photoluminescence properties.
- OSTI ID:
- 21370323
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 4 Vol. 182; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synthesis, crystal structures and photoluminescent properties of lanthanide supramolecular complexes with 4-oxo-1(4H)-quinolineacetate
Synthesis, crystal structures and luminescent properties of two 4d-4f Ln-Ag heterometallic coordination polymers based on anion template
Related Subjects
AZINES
BIPYRIDINES
CARBOXYLIC ACID SALTS
COMPLEXES
COORDINATION NUMBER
CRYSTAL STRUCTURE
EMISSION
EUROPIUM COMPLEXES
HETEROCYCLIC COMPOUNDS
HYDROTHERMAL SYNTHESIS
LIGANDS
LUMINESCENCE
NITRO COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOLUMINESCENCE
PHOTON EMISSION
PHTHALATES
POLYMERS
PYRIDINES
RARE EARTH COMPLEXES
SYNTHESIS
TEMPERATURE RANGE
TEMPERATURE RANGE 0273-0400 K
TERBIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES
YTTRIUM COMPLEXES