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sunyang1988: ½ð±Ò+2, лл°ïÖú 2013-07-04 10:17:38
ÅÖ¸çjlm: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2013-07-05 09:03:01
*data for   ICSD #41956
Coll Code   41956
Rec  Date   2000/07/15
Mod  Date   2002/04/01
Chem Name   Calcium Sulfide
Structured  Ca S
Sum         Ca1 S1
ANX         AX
Min Name    Oldhamite
D(calc)     2.6
Title       Structural phase transformations and the equations of state of
            calcium chalcogenides at high pressure
Author(s)   Luo, H.;Greene, R.G.;Ghandehari, K.;Li, T.;Ruoff, A.L.
Reference   Physical Review, Serie 3. B - Solid State (1,1970-17,1977)
            (1994), 50, 16233-16237
Unit Cell   5.689 5.689 5.689 90. 90. 90.
Vol         184.12
Z           4
Space Group F m -3 m
SG Number   225
Cryst Sys   cubic
Pearson     cF8
Wyckoff     b a
Red Cell    F  4.022 4.022 4.022 60 60 60 46.031
Trans Red   0.500 0.500 0.000 / 0.000 0.500 0.500 / 0.500 0.000 0.500
Comments    Cell at 39.6 GPa: a=5.115 (NaCl-type), above transformation
            n to CsCl-type, between 39.9-45 GPa both phases coexist.
            Cell (Cs Cl-type) at 52.1 GPa: a=3.059
            Compound with mineral name: Oldhamite
            The structure has been assigned a PDF number (calculated
            powder diffraction data): 01-078-1922
            The structure has been assigned a PDF number (experimental
            powder diffraction data): 8-464
            Structure type : NaCl
            X-ray diffraction from single crystal
            Unusual difference between calculated and measured density
            No R value given in the paper.
            At least one temperature factor missing in the paper.
Atom  #   OX   SITE      x           y           z           SOF      H
Ca   1  +2    4 a   0           0           0              1.         0   
S    1  -2    4 b   0.5         0.5         0.5            1.         0   
*end for    ICSD #41956
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