Hydrogen Mao H K, Jephcoat A P, Hemley R J, Finger L W, Zha C S, Hazen R M, Cox D E Science 239 (1988) 1131-1133 Synchrotron X-ray diffraction measurements of single-crystal hydrogen to 26.5 Gigapascals Locality: synthetic Sample: at P = 5.40 GPa, T = 300 K _database_code_amcsd 0015432 CELL PARAMETERS: 2.6590 2.6590 4.3340 90.000 90.000 120.000 SPACE GROUP: P6_3/mmc X-RAY WAVELENGTH: 1.541838 Cell Volume: 26.537 Density (g/cm3): 0.126 MAX. ABS. INTENSITY / VOLUME**2: 0.6633732008E-01 RIR: 0.171 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 39.12 33.11 2.3028 1 0 0 6 41.68 31.85 2.1670 0 0 2 2 44.56 100.00 2.0335 1 0 1 12 58.48 6.49 1.5781 1 0 2 12 70.88 3.62 1.3295 1 1 0 6 78.09 2.84 1.2238 1 0 3 12 85.73 2.09 1.1332 1 1 2 12 87.70 1.37 1.1128 2 0 1 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.