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 OF SOLID STATE CHEMISTRY, cilt.233, ss.415-421, 2016 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 233
- Basım Tarihi: 2016
- Doi Numarası: 10.1016/j.jssc.2015.10.033
- Dergi Adı: JOURNAL OF SOLID STATE CHEMISTRY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.415-421
- Anahtar Kelimeler: Hydrothermal synthesis, Piperazine, Copper(I) polymer, Luminescence, Multiple decarboxylation, Cuprophilic interaction, COORDINATION POLYMERS, CRYSTAL-STRUCTURE, LUMINESCENT PROPERTIES, COMPLEXES, MODE, EU
- Çukurova Üniversitesi Adresli: Evet
Özet
Four novel metal-organic frameworks,[Cu2Cl2(pyrz)] (1) and (H(2)pip)(n)[Ln(2)(pydc)(4)(H2O)(2)]n (Ln=Ce (2), Pr (3) and Eu (4), H(2)pzdc=2,3-pyrazinedicarboxylic acid, pyrz=pyrazine, H(2)pydc=2,6-pyridinedicarboxylic acid, H(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 CI-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. (C) 2015 Elsevier Inc. All rights reserved.