O7 P1.901 Ta0.899 Oyetola S, Verbaere A, Guyomard D, Crosnier M, Piffard Y, Tournoux M European Journal of Solid State and Inorganic Chemistry 28 (1991) 23-36 New ZrP2O7-like diphosphates of either mixed (M^III^1/2M'^V^1/2) cations (M=Sb,Bi,Nd,Eu;M'=Sb, Nb,Ta) or M'^V^ cations (M'=Ta,Nb):synthesis and structure _cod_database_code 1000328 _database_code_amcsd 0012541 CELL PARAMETERS: 8.1090 8.1090 8.1090 90.000 90.000 90.000 SPACE GROUP: Pa3 X-RAY WAVELENGTH: 1.541838 Cell Volume: 533.214 Density (g/cm3): 4.155 MAX. ABS. INTENSITY / VOLUME**2: 96.42214865 RIR: 7.557 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.96 80.98 4.6817 1 1 1 8 21.92 100.00 4.0545 2 0 0 6 24.55 16.93 3.6265 2 1 0 12 26.93 14.91 3.3105 2 1 1 24 31.20 49.24 2.8670 2 2 0 12 36.76 52.77 2.4450 3 1 1 24 38.46 17.41 2.3409 2 2 2 8 40.09 2.15 2.2490 3 0 2 12 44.70 5.01 2.0273 4 0 0 6 46.16 2.84 1.9667 4 1 0 12 47.58 1.46 1.9113 4 1 1 24 48.96 18.75 1.8603 3 3 1 24 50.32 17.80 1.8132 4 0 2 12 50.32 11.79 1.8132 4 2 0 12 51.66 1.38 1.7695 4 2 1 24 55.52 24.38 1.6552 4 2 2 24 59.21 20.54 1.5606 5 1 1 24 59.21 4.43 1.5606 3 3 3 8 62.76 1.10 1.4805 5 1 2 24 65.07 8.86 1.4335 4 4 0 12 68.45 5.34 1.3707 5 3 1 24 68.45 7.41 1.3707 5 1 3 24 69.56 9.66 1.3515 4 4 2 24 73.92 3.85 1.2821 6 0 2 12 73.92 3.31 1.2821 6 2 0 12 77.13 5.78 1.2366 5 3 3 24 78.19 7.43 1.2225 6 2 2 24 85.52 2.37 1.1355 7 1 1 24 86.56 3.21 1.1245 6 0 4 12 86.56 3.02 1.1245 6 4 0 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.