X-ray powder diffraction and IR study of calcium borophosphate, CaBPO5

X-ray powder diffraction and IR study of calcium borophosphate, CaBPO5

In this study, CaBPO5 was synthesized by different solid state reactions than reported before and its X-ray powder diffraction and IR data were reported. In one of these solid state reactions BPO4 was used as a phosphating agent. The examination of the X-ray powder diffraction data showed that this compound crystallized in a hexagonal system and the refined unit cell parameters were a = 6.684, c = 6.616(2) Â, with Z=3 as reported before. From the observed reflections, the space group was determined as $P3_1 21$, and its density was found to be 3.15 g/cc. The X-ray powder diffraction and IR data, which were in agreement with the reported crystal structure, are given the first time in this work.

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  • 1. G.Gözel, “Preparation and Structurel Investigation of Alkaline-Earth Borophosphates”, Ph.D. Thesis, Middle East Technical University, Ankara, Turkey, 1993.
  • 2. R.Kniep, G.Gözel, B.Eisenmann, C.Röhr, M.Ashbrand, M.Kizi1ya11i, Angew. Chem. Int. Ed. Enq., 33, 749—751, 1994.
  • 3. P.B.Bontchev, and S.C. Sevov, Inorganic C hemistry, 35, 6910-6911, 1996.
  • 4. S.P.Ve1sko, M.Webb, L.Davis, and D.Huang, IEEE J. Ouant. Electron., 27, 2182-2192, 1991.
  • 5. C.Chen, Y.Wu, and R.Li, Journal of Crystal Growth, 99, 790, 1990.
  • 6. T.Y.Fan, C.E.Huang, B.Q.Hu, R.C.Eckhardt, Y.X.Fan, R.L. Bayer, and R.S.Feige1son, Appl.Opt., 26, 2391- 2394, 1987.
  • 7. P.Tarte, U.W.Schroder, C.R. Acad. Sc. Paris Serie II, t295, 351—354, 1982.
  • 8. H. Z.Bauer, Anorg. Allg. Chem., 337, 183-190, 1965.
  • 9. H. Z.Bauer, Anorg. Allg. Chem., 345, 225-229, 1966.
  • 10. A.Ru1mont and P.Tarte, Journal of Solid State Chemistry, T5, 244-250, 1988.
  • 11. A.R.Grimmer, D.Müller, G.Gözel, and R.Kniep, Fresenius Journal of Analytical Chemistry, 357, 485-488, 1997.
  • 12. T.Rarnarnoorthy, and T.J.Rockett, Journal American Ceramic Society, 57, 501-503, 1974.
  • 13. G.Sedmale, J.Vaivads, U.Sedma1is, V.O.Kabanov, and O.V.Yanush, journal of Non. Crys. Solids, 129, 284-291, 1991.
  • 14 Y.Shi, I.K.Liang, H.Zhang, Q.L.Liu, X.L. Chen, J.LYang, W.D. Zhuang, and G.H.Raa, Journal of Solid State Chemistry, 135(1), 43-51, 1998.
  • 15. N.N.Ray, Inorganic Polymers, Academic Press, London, 1978.
  • 16. Montagne L., Palavit G., J. Non. Cryst. Solids,155, 115-121, 1993.
  • 17. A. Osaka, K.Takashi, M.Ikeda, J. Mat. Sci. Letters, 3, 36—38, 1984.
  • 18. E.A.Porai-Koshits, V.V. Globukov, A.P.Totov and I.Vasi1evskaya, J. Non. Cryst. Solids, 49, 143-56, 1982.
  • 19. A.Bayka1, “Synthesis and Characterization of Alkaline Earth and Rare Earth Borophosphate Compounds” PhD Thesis, Chemistry Department, Middle East Technical University, Ankara, Turkey, May, 1999.