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Hydrothermal preparation of the mixed titanium (IV) phosphate-phenylphosphonates and characterization of their properties
Published online by Cambridge University Press: 31 January 2011
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Mixed crystalline titanium (IV) phosphate-phenylphosphonates were synthesized under hydrothermal conditions using tetramethylammonium hydroxide as a templating reagent. It was found that at a relatively low molar ratio H3PO4 : PhPO3H2 in the reaction mixture (<1) only a pure α-titanium phenylphosphonate is formed. At the molar ratio H3PO4 : PhPO3H2 = (3–5): 1 the formation of a novel mixed compound titanium (IV) dihydrogenphosphate-hydrogenphosphate-phenylphosphonate takes place. Further increase of the ratio H3PO4 : PhPO3H2 gives mechanical mixtures of different phases. Preliminary results on the characterization of the novel compound of formula Ti(H2PO4)1.25(HPO4)0.12(C6H5PO3)1.25 · 0.3H2O are presented.
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- Copyright © Materials Research Society 1998
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