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Äã²ÉÓÃÕâ¸öÊÔÊÔ£¬Ó¦¸ÃûÎÊÌâ *data for ICSD #15535 Coll Code 15535 Rec Date 1981/12/31 Mod Date 2003/10/01 Chem Name Dioxygen - Beta Structured O2 Sum O2 ANX N D(calc) 2.22 Title Structure of O2 at 5*5 GPa and 299K Author(s) Schiferl, D.;Cromer, D.T.;Mills, R.L. Reference Acta Crystallographica B (24,1968-38,1982) (1981), 37, 1329-1332 Phase Transition (1992), 38, 127-220 Unit Cell 2.8467(2) 2.8467 10.2249(8) 90. 90. 120. Vol 71.76 Z 3 Space Group R -3 m H SG Number 166 Cryst Sys trigonal/rhombohedral Pearson hR2 Wyckoff c R Value .05 Red Cell RH 2.846 2.846 3.783 67.903 67.903 60 23.919 Trans Red 0.000 1.000 0.000 / 1.000 1.000 0.000 / 0.333 0.667 -0.333 Comments At ambient pressure stable from 24 to 44 K (2nd ref., Tomaszewski) PDF 38-902 (at 7.4 GPa, 298 K) The structure has been assigned a PDF number: 38-902 Pressure in MPa: 5500 Temperature in Kelvin: 299 Atom # OX SITE x y z SOF H O 1 +0 6 c 0 0 0.0577(2) 1. 0 Lbl Type Beta11 Beta22 Beta33 Beta12 Beta13 Beta23 O1 O0+ 0.1647(7) 0.1647 0.0055(3) 0.08235 0 0 *end for ICSD #15535 |
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