Archerite Frazer B C, Pepinsky R Acta Crystallographica 6 (1953) 273-285 X-ray analysis of the ferroelectric transition in KH2PO4 Sample: at T = 116 K Locality: synthetic, low-temperature form _database_code_amcsd 0009155 CELL PARAMETERS: 10.5300 10.4400 6.9000 90.000 90.000 90.000 SPACE GROUP: Fdd2 X-RAY WAVELENGTH: 1.541838 Cell Volume: 758.539 Density (g/cm3): 1.787 MAX. ABS. INTENSITY / VOLUME**2: 16.13492306 RIR: 2.939 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 17.56 6.41 5.0509 1 1 1 4 24.01 100.00 3.7069 2 2 0 4 29.81 6.52 2.9968 3 1 1 4 29.98 4.66 2.9801 1 3 1 4 30.99 43.98 2.8857 2 0 2 2 31.07 43.98 2.8782 0 2 2 2 34.06 14.09 2.6325 4 0 0 2 34.36 13.71 2.6100 0 4 0 2 35.55 2.29 2.5255 2 2 2 4 41.09 3.73 2.1967 1 1 3 4 46.76 25.35 1.9425 4 2 2 4 46.94 25.22 1.9357 2 4 2 4 48.09 1.10 1.8919 3 1 3 4 49.16 5.38 1.8535 4 4 0 4 52.49 1.40 1.7433 5 3 1 4 52.71 1.12 1.7367 3 5 1 4 53.09 1.25 1.7250 0 0 4 1 55.22 6.04 1.6635 6 2 0 4 55.63 5.89 1.6521 2 6 0 4 59.05 5.44 1.5642 6 0 2 2 59.07 9.68 1.5640 2 2 4 4 59.50 5.32 1.5536 0 6 2 2 64.59 4.43 1.4428 4 0 4 2 64.78 4.38 1.4391 0 4 4 2 70.14 6.08 1.3417 6 4 2 4 70.37 6.02 1.3380 4 6 2 4 71.70 1.81 1.3162 8 0 0 2 72.42 1.75 1.3050 0 8 0 2 75.25 7.17 1.2627 4 4 4 4 77.20 2.12 1.2356 6 6 0 4 80.15 4.35 1.1974 6 2 4 4 80.19 4.04 1.1970 8 2 2 4 80.50 4.30 1.1932 2 6 4 4 80.83 3.94 1.1891 2 8 2 4 81.98 2.45 1.1753 8 4 0 4 82.50 2.40 1.1692 4 8 0 4 86.66 1.72 1.1235 2 0 6 2 86.70 1.71 1.1231 0 2 6 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.