研究目的
Investigating the synthesis and luminescent properties of novel spherical infinite coordination polymers based on rare earth ions and organic linkers, with potential applications in phosphors.
研究成果
Novel water-synthesized terbium-based ICPs with 3,5-pyrazoledicarboxylic and malonic acids as linkers were reported, showing intense green emission under UV excitation. Codoping with Eu3+ and Dy3+ ions produced materials with different emission colors, including white-light emission. These materials have potential applications in catalysis, chemical sensing, bioimaging, and solid-state lighting.
研究不足
The amorphous nature of ICPs limits structural characterization by X-ray diffraction. The exact structure of the compounds remains unclear due to the impossibility of resolving it via single crystal X-ray diffraction.
1：Experimental Design and Method Selection:
Microwave-assisted synthesis in water was used to prepare the ICPs.
2：Sample Selection and Data Sources:
Terbium(III), gadolinium(III), europium(III), and dysprosium(III) chlorides were used with 3,5-pyrazoledicarboxylic acid and malonic acid as linkers.
3：List of Experimental Equipment and Materials:
Microwave reactor, PERKIN-ELMER 2400 Series II CHNS/O elemental analyzer, NICOLET/SX-FT Impact 400 FT-IR spectrometer, SIEMENS/D5000 DIFFRAC PLUS XRD Commander, JEOL JSM-7500F FEG-SEM, TA INSTRUMENTS Q500 thermal analyzer, HORIBA JOBIN YVON FLUOROLOG FL3-222 fluorospectrometer.
4：Experimental Procedures and Operational Workflow:
Synthesis involved dissolving reactants in water, adjusting pH, microwave heating, centrifugation, washing, and drying.
5：Data Analysis Methods:
Elemental analysis, IR spectroscopy, XRD, FEG-SEM, thermogravimetric analysis, photoluminescence spectroscopy.
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