Letovicite Friese K, Aroyo M I, Schwalowsky I, Adiwidjaja G, Bismayer U Journal of Solid State Chemistry 165 (2002) 136-147 The disordered high-temperature structure of (NH4)3H(SO4)2 and its relationship to the room-temperature phase Locality: synthetic Sample: T = 293 K _database_code_amcsd 0014022 CELL PARAMETERS: 15.4180 5.9050 10.2230 90.000 102.806 90.000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 907.585 Density (g/cm3): 1.809 MAX. ABS. INTENSITY / VOLUME**2: 5.084412903 RIR: 0.915 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 11.77 2.21 7.5172 2 0 0 2 16.13 13.19 5.4963 1 1 0 4 17.79 84.74 4.9871 -1 1 1 4 17.80 68.41 4.9844 0 0 2 2 19.06 5.76 4.6566 -2 0 2 2 19.06 38.99 4.6563 1 1 1 4 23.10 1.92 3.8508 -1 1 2 4 23.48 33.38 3.7882 -3 1 1 4 23.50 20.50 3.7856 2 0 2 2 23.67 39.43 3.7586 4 0 0 2 25.07 8.68 3.5518 1 1 2 4 26.34 55.02 3.3831 -4 0 2 2 26.35 100.00 3.3819 3 1 1 4 30.27 27.40 2.9525 0 2 0 2 30.28 68.06 2.9515 -1 1 3 4 32.58 1.52 2.7481 2 2 0 4 32.59 6.57 2.7478 -3 1 3 4 32.60 2.19 2.7468 1 1 3 4 32.85 9.32 2.7262 -5 1 1 4 32.87 1.71 2.7247 4 0 2 2 33.10 8.64 2.7061 -2 2 1 4 35.33 3.43 2.5403 0 2 2 4 35.34 1.04 2.5397 -2 0 4 2 35.84 9.11 2.5057 6 0 0 2 36.02 14.32 2.4935 -2 2 2 4 36.04 2.76 2.4922 0 0 4 2 36.39 5.68 2.4691 -6 0 2 2 36.40 6.27 2.4683 5 1 1 4 38.67 1.39 2.3283 -4 0 4 2 38.67 3.26 2.3281 2 2 2 4 40.55 22.97 2.2245 -4 2 2 4 40.58 17.94 2.2230 2 0 4 2 40.88 2.22 2.2074 -2 2 3 4 43.87 7.19 2.0636 -7 1 1 4 43.89 3.45 2.0628 6 0 2 2 44.43 1.58 2.0388 -4 2 3 4 46.53 2.03 1.9517 1 3 0 4 47.74 1.02 1.9050 1 3 1 4 47.76 1.79 1.9044 0 2 4 4 47.79 1.73 1.9032 -8 0 2 2 48.03 1.07 1.8941 -6 2 2 4 48.44 5.48 1.8793 8 0 0 2 49.67 1.87 1.8353 -1 3 2 4 49.87 1.64 1.8284 -3 3 1 4 49.88 2.91 1.8282 -4 2 4 4 49.91 4.23 1.8274 1 1 5 4 50.72 1.62 1.7998 1 3 2 4 51.44 1.03 1.7764 -5 1 5 4 51.46 2.31 1.7759 2 2 4 4 53.78 1.97 1.7044 -1 3 3 4 53.80 2.23 1.7038 -2 0 6 2 55.26 2.60 1.6624 -3 3 3 4 55.62 1.35 1.6523 0 2 5 4 55.97 3.92 1.6429 -9 1 1 4 55.99 1.58 1.6424 8 0 2 2 57.62 3.32 1.5997 -8 2 2 4 57.66 1.48 1.5987 6 0 4 2 58.18 1.96 1.5856 -9 1 3 4 58.21 1.19 1.5848 7 1 3 4 60.22 1.00 1.5368 -3 3 4 4 62.96 1.56 1.4763 0 4 0 2 62.99 5.67 1.4757 -2 2 6 4 63.37 3.41 1.4677 -8 2 4 4 63.37 1.92 1.4677 -7 3 1 4 63.41 2.14 1.4668 5 1 5 4 64.62 2.55 1.4423 -2 4 1 4 68.30 1.10 1.3734 2 2 6 4 69.47 1.11 1.3530 -4 4 2 4 69.48 1.30 1.3529 -5 3 5 4 69.52 2.04 1.3522 1 1 7 4 70.25 1.84 1.3400 -11 1 3 4 70.26 1.07 1.3398 10 2 0 4 70.28 1.52 1.3394 9 1 3 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.