Nb4 O12 U Labeau M, Grey I, Coubert J, Chenevas J, Collomb A, Guitel J Acta Crystallographica B41 (1985) 33-41 The structure of the a-cation deficient Perovskite U Nb4 O12 _cod_database_code 1008280 _database_code_amcsd 0016202 CELL PARAMETERS: 15.4240 7.7120 15.5920 90.000 90.000 90.000 SPACE GROUP: Immm X-RAY WAVELENGTH: 1.541838 Cell Volume: 1854.667 Density (g/cm3): 5.784 MAX. ABS. INTENSITY / VOLUME**2: 107.2155603 RIR: 6.036 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 8.06 26.51 10.9653 1 0 1 4 11.35 52.51 7.7960 0 0 2 2 18.01 4.01 4.9252 1 0 3 4 18.17 9.15 4.8827 3 0 1 4 22.81 10.01 3.8980 0 0 4 2 23.07 9.72 3.8560 0 2 0 2 23.07 10.71 3.8560 4 0 0 2 24.35 6.20 3.6551 3 0 3 4 24.47 6.98 3.6376 1 2 1 8 25.78 20.31 3.4563 4 0 2 4 25.78 21.88 3.4563 0 2 2 4 29.22 3.31 3.0566 1 0 5 4 29.42 4.08 3.0362 1 2 3 8 29.52 1.44 3.0261 5 0 1 4 29.52 6.31 3.0261 3 2 1 8 32.67 47.94 2.7413 4 0 4 4 32.67 52.06 2.7413 0 2 4 4 32.85 49.76 2.7266 4 2 0 4 33.61 1.17 2.6663 3 0 5 4 33.79 1.21 2.6527 3 2 3 8 34.51 5.49 2.5987 0 0 6 2 34.86 10.05 2.5737 4 2 2 8 40.94 1.14 2.2046 1 0 7 4 41.16 2.64 2.1931 3 2 5 8 41.38 1.73 2.1818 7 0 1 4 41.92 2.07 2.1550 4 0 6 4 41.92 2.12 2.1550 0 2 6 4 46.60 15.69 1.9490 0 0 8 2 47.14 15.66 1.9280 8 0 0 2 47.14 15.21 1.9280 0 4 0 2 47.71 1.37 1.9063 5 2 5 8 47.91 1.29 1.8989 7 2 1 8 48.39 11.37 1.8811 4 2 6 8 48.65 2.29 1.8716 0 4 2 4 48.65 2.26 1.8716 8 0 2 4 50.54 2.72 1.8059 3 2 7 8 50.86 3.35 1.7953 7 2 3 8 50.92 1.07 1.7933 3 4 1 8 52.62 1.07 1.7394 4 0 8 4 52.62 1.29 1.7394 0 2 8 4 52.99 1.48 1.7282 0 4 4 4 52.99 1.27 1.7282 8 0 4 4 53.11 1.17 1.7245 4 4 0 4 53.11 1.77 1.7245 8 2 0 4 53.75 1.55 1.7053 3 4 3 8 54.50 4.40 1.6838 8 2 2 8 54.50 4.66 1.6838 4 4 2 8 56.43 1.10 1.6307 7 2 5 8 58.18 18.17 1.5856 4 2 8 8 58.53 18.04 1.5770 8 2 4 8 58.53 18.45 1.5770 4 4 4 8 58.73 1.40 1.5720 1 2 9 8 59.72 1.97 1.5484 0 4 6 4 59.72 1.74 1.5484 8 0 6 4 64.46 2.37 1.4455 4 0 10 4 64.46 2.35 1.4455 0 2 10 4 64.90 1.08 1.4369 4 4 6 8 68.45 6.91 1.3707 8 0 8 4 68.45 6.75 1.3707 0 4 8 4 68.87 6.86 1.3633 8 4 0 4 70.07 1.19 1.3429 8 4 2 8 71.90 1.11 1.3131 11 2 1 8 77.53 3.03 1.2313 0 2 12 4 77.53 2.54 1.2313 4 0 12 4 78.33 2.53 1.2207 12 0 4 4 78.33 3.22 1.2207 0 6 4 4 78.43 2.78 1.2194 4 6 0 4 78.43 3.01 1.2194 12 2 0 4 79.37 1.34 1.2073 8 4 6 8 83.61 1.97 1.1565 8 2 10 8 83.61 2.03 1.1565 4 4 10 8 85.65 1.11 1.1341 11 2 7 8 87.27 5.43 1.1171 8 4 8 8 88.59 1.39 1.1039 4 6 6 8 88.59 1.34 1.1039 12 2 6 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.