Abstract
Organo-phosphate precursors are of growing interest for sol-gel preparation of phosphate-based crystals and glasses. Using 31P NMR, 13C NMR, and FT-IR spectroscopy, we investigated the optimal conditions for precursors synthesis from liquid saturated aliphatic alcohols and P 2O 5. The best results were obtained by using ethanol or 2-butanol as the alcohol. Starting from the ethanol-derived precursor, we synthesized boron orthophosphate, BPO 4, which for the first time has been obtained directly by a sol-gel route.
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