Determination of Formation Regions of Titanium Phosphates; Determination of the Crystal Structure ofβ-Titanium Phosphate, Ti(PO4)(H2PO4), from Neutron Powder Data
作者： Anne Marie Krogh Andersen , Poul Norby , Tom Vogt , None
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摘要: Abstract The formation region of the various types layered titanium hydrogen phosphate hydrates was investigated. materials were prepared by hydrothermal methods, treating amorphous with phosphoric acid (8 to 16 M ) in temperature range 175 250°C. obtained were: α -Ti(HPO 4 2 ·H O, γ -Ti(PO )(H PO )·2H and its anhydrous form β ). structure has been determined Rietveld powder refinement high resolution neutron diffraction data. is refined monoclinic space group P 1 / n (No. 14). unit cell parameters are: a =18.9503(4) A, b =6.3127(1) c =5.1391(1) =105.366(2)°; Z =4. final agreement factors R p =2.9% wp =3.8%. built from TiO 6 octahedra linked together tertiary (PO dihydrogen ((OH) tetrahedra. layers are held bonds.
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Abraham Clearfield, G. David Smith, Crystallography and structure of .alpha.-zirconium bis(monohydrogen orthophosphate) monohydrate Inorganic Chemistry. ,vol. 8, pp. 431- 436 ,(1969) , 10.1021/IC50073A005
Etsuro Kobayashi, Shinsuke Yamazaki, Studies of Inorganic Ion Exchangers. VI. The Formation Region and Dehydration Behavior of Various Titanium(IV) Bis(hydrogenorthophosphate) Hydrates Bulletin of the Chemical Society of Japan. ,vol. 56, pp. 1632- 1636 ,(1983) , 10.1246/BCSJ.56.1632
Nigel J. Clayden, Solid-state nuclear magnetic resonance spectroscopic study of γ-zirconium phosphate J. Chem. Soc., Dalton Trans.. pp. 1877- 1881 ,(1987) , 10.1039/DT9870001877
A. Clearfield, Robert H. Blessing, James A. Stynes, New crystalline phases of zirconium phosphate possessing ion-exchange properties Journal of Inorganic and Nuclear Chemistry. ,vol. 30, pp. 2249- 2258 ,(1968) , 10.1016/0022-1902(68)80224-6
D.J. Buttrey, T. Vogt, U. Wildgruber, W.R. Robinson, Structural Refinement of the High Temperature Form of Bi2MoO6 Journal of Solid State Chemistry. ,vol. 111, pp. 118- 127 ,(1994) , 10.1006/JSSC.1994.1206
Damodara M. Poojary, Baolong Zhang, Yaping Dong, Guangzhi Peng, Abraham Clearfield, X-ray Powder Structure of Monoammonium-Exchanged Phase of .gamma.-Zirconium Phosphate, Zr(PO4)(NH4HPO4) The Journal of Physical Chemistry. ,vol. 98, pp. 13616- 13620 ,(1994) , 10.1021/J100102A029
M. Catti, G. Ivaldi, Crystal structure of LiH2PO4, structural topology and hydrogen bonding in the alkaline dihydrogen orthophosphates Zeitschrift Fur Kristallographie. ,vol. 146, pp. 215- 226 ,(1977) , 10.1524/ZKRI.1977.146.4-6.215
P. E. Werner, L. Eriksson, M. Westdahl, TREOR, a semi-exhaustive trial-and-error powder indexing program for all symmetries Journal of Applied Crystallography. ,vol. 18, pp. 367- 370 ,(1985) , 10.1107/S0021889885010512
Damodara M. Poojary, Boris Shpeizer, Abraham Clearfield, X-Ray powder structure and Rietveld refinement of γ-zirconium phosphate, Zr(PO4)(H2PO4)·2H2O Journal of The Chemical Society-dalton Transactions. pp. 111- 113 ,(1995) , 10.1039/DT9950000111
G. Alberti, P. Cardini-Galli, U. Costantino, E. Torracca, Crystalline insoluble salts of polybasic metals—I Ion-exchange properties of crystalline titanium phosphate Journal of Inorganic and Nuclear Chemistry. ,vol. 29, pp. 571- 578 ,(1967) , 10.1016/0022-1902(67)80063-0