Na2Se Wyckoff R W G Crystal Structures 1 (1963) 239-444 Second edition. Interscience Publishers, New York, New York Anti-fluorite structure _database_code_amcsd 0011744 CELL PARAMETERS: 6.8090 6.8090 6.8090 90.000 90.000 90.000 SPACE GROUP: Fm3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 315.682 Density (g/cm3): 2.628 MAX. ABS. INTENSITY / VOLUME**2: 56.55546588 RIR: 7.006 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 22.62 100.00 3.9312 1 1 1 8 26.18 7.99 3.4045 2 0 0 6 37.35 97.99 2.4073 2 2 0 12 44.11 46.86 2.0530 3 1 1 24 46.18 2.46 1.9656 2 2 2 8 53.86 15.01 1.7023 4 0 0 6 59.14 18.45 1.5621 3 3 1 24 60.84 3.82 1.5225 4 2 0 24 67.38 27.09 1.3899 4 2 2 24 72.07 3.24 1.3104 3 3 3 8 72.07 9.72 1.3104 5 1 1 24 79.65 7.59 1.2037 4 4 0 12 84.11 12.38 1.1509 5 3 1 48 85.58 1.90 1.1348 4 4 2 24 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.