CHED 1175 |
| Oxythiophosphates, materials which substitute sulfur into an orthophosphate-type anion are rare in the literature, only about 30 are known. We expect that oxythiophosphates may display similar or modified properties compared to the parent phosphate. In the case of lanthanide oxythiophosphates, we can expect interesting magnetic and luminescent properties. We believe to have produced the hydrated compound LaPO3S•H2O by combining Na3PO3S with LaCl in water. The dehydrated product can be obtained after annealing at 200°C. We have observed the structure of this new compound to be similar to the parent phosphate. The intent of this research project is to draw comparisons between the corresponding orthophosphate and oxythiophosphate materials. Data comparing lanthanide orthophosphates with lanthanide oxythiophosphates will be presented by way of differential thermal analysis (DTA), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), and powder X-ray diffraction (PXRD). |
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Undergraduate Research Poster Session: Inorganic Chemistry
2:00 PM-4:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |