(NH4)2BeF4 Hultgren R Zeitschrift fur Kristallographie 88 (1934) 233-237 The crystal structure of ammonium beryllium fluoride, (NH4)2BeF4 _database_code_amcsd 0010535 CELL PARAMETERS: 5.8000 10.2000 7.5000 90.000 90.000 90.000 SPACE GROUP: Pmcn X-RAY WAVELENGTH: 1.541838 Cell Volume: 443.700 Density (g/cm3): 1.692 MAX. ABS. INTENSITY / VOLUME**2: 2.500850165 RIR: 0.481 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.66 5.47 6.0424 0 1 1 4 17.39 1.01 5.1000 0 2 0 2 17.59 12.75 5.0419 1 1 0 4 21.07 41.47 4.2173 0 2 1 4 21.23 79.95 4.1843 1 1 1 8 23.73 10.36 3.7500 0 0 2 2 29.57 11.09 3.0212 0 2 2 4 30.48 19.36 2.9332 1 3 0 4 30.83 26.98 2.9000 2 0 0 2 32.78 2.04 2.7317 1 3 1 8 34.30 31.25 2.6145 2 1 1 8 35.19 80.09 2.5500 0 4 0 2 35.61 15.17 2.5209 2 2 0 4 35.64 6.65 2.5188 0 3 2 4 37.02 86.83 2.4281 0 1 3 4 37.24 29.56 2.4143 0 4 1 4 37.64 74.65 2.3896 2 2 1 8 38.98 11.51 2.3104 1 3 2 8 39.27 1.44 2.2941 2 0 2 4 40.17 30.48 2.2448 0 2 3 4 40.30 100.00 2.2381 2 1 2 8 40.47 19.05 2.2289 1 4 1 8 42.72 46.20 2.1167 2 3 1 8 43.22 3.23 2.0935 1 2 3 8 43.24 12.08 2.0921 2 2 2 8 45.01 30.09 2.0141 0 3 3 4 45.79 2.16 1.9818 1 4 2 8 47.23 2.71 1.9244 1 5 0 4 47.48 1.05 1.9150 2 4 0 4 47.83 31.82 1.9017 2 3 2 8 48.86 3.93 1.8640 1 5 1 8 48.92 4.69 1.8617 2 1 3 8 49.42 5.40 1.8441 0 1 4 4 50.96 8.17 1.7920 0 5 2 4 51.20 2.33 1.7841 1 0 4 4 51.48 4.54 1.7751 2 2 3 8 51.96 1.01 1.7598 0 2 4 4 52.04 3.39 1.7575 3 2 1 8 53.31 2.07 1.7184 3 0 2 4 53.52 2.55 1.7121 1 5 2 8 53.75 2.04 1.7055 2 4 2 8 54.49 3.94 1.6840 1 2 4 8 55.42 2.68 1.6579 0 6 1 4 55.55 2.76 1.6543 2 3 3 8 56.08 4.69 1.6400 3 3 1 8 58.39 4.25 1.5806 0 5 3 4 58.63 9.64 1.5746 2 0 4 4 59.72 1.40 1.5483 0 6 2 4 60.35 2.41 1.5337 3 3 2 8 60.76 9.80 1.5244 2 5 2 8 61.37 1.12 1.5106 0 4 4 4 61.44 1.68 1.5091 3 4 1 8 62.59 2.15 1.4840 0 1 5 4 63.42 9.68 1.4666 2 6 0 4 64.24 14.45 1.4500 4 0 0 2 64.77 1.74 1.4393 2 6 1 8 64.85 1.79 1.4377 1 1 5 8 65.31 2.06 1.4288 2 3 4 8 65.50 3.88 1.4250 3 4 2 8 66.12 5.10 1.4132 1 7 0 4 67.44 1.75 1.3888 1 7 1 8 67.49 2.86 1.3878 2 5 3 8 67.90 4.54 1.3805 0 5 4 4 68.70 4.00 1.3662 1 6 3 8 68.72 5.63 1.3658 2 6 2 8 70.26 4.08 1.3397 2 4 4 8 71.40 2.47 1.3211 2 1 5 8 72.65 1.64 1.3014 3 2 4 8 73.46 19.36 1.2891 2 2 5 8 73.88 2.99 1.2828 2 7 1 8 75.41 6.55 1.2605 4 4 0 4 75.49 1.32 1.2594 0 6 4 4 75.66 1.83 1.2570 0 8 1 4 76.52 8.05 1.2449 4 1 3 8 76.66 2.30 1.2430 4 4 1 8 76.83 3.09 1.2407 0 1 6 4 77.57 2.23 1.2307 1 6 4 8 77.60 1.00 1.2303 1 7 3 8 77.74 1.00 1.2284 1 8 1 8 78.53 3.09 1.2180 4 2 3 8 81.33 3.74 1.1831 1 5 5 8 81.43 1.67 1.1818 1 8 2 8 81.82 2.12 1.1772 3 1 5 8 81.86 3.84 1.1768 4 3 3 8 82.16 1.45 1.1732 0 3 6 4 82.98 2.49 1.1636 3 7 0 4 83.76 4.17 1.1548 2 7 3 8 84.20 2.62 1.1499 3 7 1 8 85.18 1.49 1.1392 5 1 1 8 86.30 1.06 1.1272 4 5 2 8 87.43 1.11 1.1155 2 5 5 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.