In situ hydrothermal syntheses, structures and photoluminescent properties of four novel metal-organic frameworks constructed by lanthanide (Ln=Ce(III), Pr(III), Eu(III)) and Cu(I) metals with flexible dicarboxylate acids and piperazine-based ligands

Journal Article · Fri Jan 15 00:00:00 EST 2016 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/J.JSSC.2015.10.033· OSTI ID:22577758

Ay, Burak; Karaca, Serkan ^[1]; Yildiz, Emel ^[1]; Lopez, Valerie ^[2]; Nanao, Max H. ^[3]; Zubieta, Jon ^[2]

---

1. Department of Chemistry, Arts and Science Faculty, Çukurova University, 01330 Adana (Turkey)
2. Department of Chemistry, Syracuse University, Syracuse, NY 13244 (United States)
3. European Molecular Biology Laboratory, Grenoble Outstation, 71 Avenue des Martyrs, CS 90181, 38042 Grenoble Cedex 9 (France)

Four novel metal-organic frameworks,[Cu{sub 2}Cl{sub 2}(pyrz)]{sub n} (1) and (H{sub 2}pip){sub n}[Ln{sub 2}(pydc){sub 4}(H{sub 2}O){sub 2}]{sub n} (Ln=Ce (2), Pr (3) and Eu (4), H{sub 2}pzdc=2,3-pyrazinedicarboxylic acid, pyrz=pyrazine, H{sub 2}pydc=2,6-pyridinedicarboxylic acid, H{sub 2}pip=piperazine) have been synthesized under hydrothermal conditions and characterized by the elemental analysis, ICP, Far IR (FIR), FT-IR spectra, TGA, single crystal X-ray diffraction analysis and powder X-ray diffraction (PXRD). Compound 1 is two-dimensional containing Cl-Cu-Cl sites, while the lanthanide complexes contain one-dimensional infinite Ln–O-Ln chains. All the complexes show high thermal stability. The complexes 1–3 exhibit luminescence emission bands at 584, 598 and 614 nm at room temperature when excited at 300 nm. Complex 4 exhibits bright red solid-state phosphorescence upon exposure to UV radiation at room temperature. - Graphical abstract: Four novel metal-organic frameworks have been synthesized under hydrothermal conditions. Thermal and luminescent properties of the compounds have been investigated.

• OSTI ID: 22577758
• Journal Information: Journal of Solid State Chemistry, Vol. 233; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPPER
DECARBOXYLATION
FOURIER TRANSFORMATION
HYDROTHERMAL SYNTHESIS
INFRARED SPECTRA
INTERACTIONS
LIGANDS
MONOCRYSTALS
ORGANOMETALLIC COMPOUNDS
PHOSPHORESCENCE
PHOTOLUMINESCENCE
PIPERAZINES
POWDERS
RARE EARTH COMPLEXES
RARE EARTHS
SOLIDS
THERMAL GRAVIMETRIC ANALYSIS
ULTRAVIOLET RADIATION
X RADIATION
X-RAY DIFFRACTION