K3 Nb8 O21 Groult D, Chailleux J, Choisnet J, Raveau B Journal of Solid State Chemistry 19 (1976) 235-244 Sur une nouvelle famille d'oxydes ternaires de niobium, A3 M8 O21 a structure en cages _cod_database_code 1001027 _database_code_amcsd 0013335 CELL PARAMETERS: 9.1530 9.1530 12.0660 90.000 90.000 120.000 SPACE GROUP: P6_3/mcm X-RAY WAVELENGTH: 1.541838 Cell Volume: 875.429 Density (g/cm3): 4.539 MAX. ABS. INTENSITY / VOLUME**2: 37.30431992 RIR: 2.676 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 11.16 19.95 7.9267 1 0 0 6 14.68 51.89 6.0330 0 0 2 2 19.40 1.04 4.5765 1 1 0 6 20.76 42.00 4.2790 1 1 1 12 22.43 45.65 3.9634 2 0 0 6 24.41 38.27 3.6461 1 1 2 12 26.92 37.78 3.3125 2 0 2 12 29.57 100.00 3.0211 1 1 3 12 29.61 9.32 3.0165 0 0 4 2 29.82 55.23 2.9960 2 1 0 12 30.75 61.74 2.9077 2 1 1 24 31.74 23.34 2.8193 1 0 4 12 33.39 15.09 2.6834 2 1 2 24 33.93 23.25 2.6422 3 0 0 6 35.65 21.03 2.5186 1 1 4 12 37.15 7.35 2.4203 3 0 2 12 37.43 14.95 2.4027 2 1 3 24 37.47 5.13 2.4004 2 0 4 12 39.38 3.00 2.2882 2 2 0 6 40.11 4.93 2.2482 2 2 1 12 41.76 6.34 2.1629 3 1 1 24 42.24 2.20 2.1395 2 2 2 12 45.08 12.37 2.0110 0 0 6 2 45.64 4.49 1.9876 3 0 4 12 45.79 27.14 1.9817 4 0 0 6 46.59 9.47 1.9492 1 0 6 12 48.34 1.55 1.8827 4 0 2 12 48.43 1.06 1.8794 2 1 5 24 49.51 18.03 1.8411 1 1 6 12 50.03 19.49 1.8231 2 2 4 12 50.17 5.30 1.8185 3 2 0 12 50.77 13.92 1.7982 3 2 1 24 51.43 17.47 1.7767 3 1 4 24 52.56 8.00 1.7411 3 2 2 24 52.93 20.86 1.7298 4 1 0 12 54.99 1.60 1.6697 2 1 6 24 55.24 13.36 1.6628 4 1 2 24 55.45 21.37 1.6570 3 2 3 24 55.48 28.07 1.6563 4 0 4 12 57.10 7.79 1.6131 1 1 7 12 58.19 2.67 1.5853 5 0 0 6 60.37 1.20 1.5333 5 0 2 12 61.24 4.42 1.5135 3 3 1 12 61.37 12.07 1.5106 2 2 6 12 61.48 2.44 1.5082 0 0 8 2 61.95 6.66 1.4980 4 2 0 12 62.13 14.83 1.4941 2 1 7 24 62.60 4.94 1.4839 3 1 6 24 64.05 1.10 1.4539 4 2 2 24 65.43 2.36 1.4263 3 3 3 12 65.57 4.36 1.4237 5 1 0 12 66.08 5.07 1.4139 5 1 1 24 66.21 19.10 1.4115 4 0 6 12 67.61 1.38 1.3856 5 1 2 24 68.10 1.24 1.3768 2 2 7 12 68.99 5.35 1.3613 3 3 4 12 69.27 1.08 1.3565 3 1 7 24 69.81 1.38 1.3472 2 1 8 24 70.12 9.82 1.3421 5 1 3 24 72.11 2.48 1.3099 3 0 8 12 73.36 1.32 1.2905 6 0 2 12 73.62 2.28 1.2866 1 1 9 12 75.28 2.51 1.2623 5 2 1 24 76.08 8.37 1.2510 3 2 7 24 76.52 5.02 1.2450 5 0 6 12 76.90 1.03 1.2397 4 3 3 24 78.74 4.99 1.2154 3 3 6 12 79.12 4.43 1.2104 5 2 3 24 79.25 4.03 1.2088 6 1 0 12 79.42 2.57 1.2066 0 0 10 2 79.72 1.14 1.2028 6 1 1 24 80.25 2.42 1.1963 4 3 4 24 82.44 6.10 1.1699 5 2 4 24 83.51 5.23 1.1577 6 1 3 24 83.81 2.51 1.1543 2 0 10 12 84.72 1.60 1.1441 4 4 0 6 84.88 3.36 1.1424 3 3 7 12 85.40 2.07 1.1368 4 1 8 24 87.07 2.36 1.1192 2 1 10 24 88.56 1.19 1.1042 6 0 6 12 89.23 4.96 1.0977 5 1 7 24 89.24 1.24 1.0976 3 0 10 12 89.65 1.42 1.0936 4 3 6 24 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.