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xujun16(½ð±Ò+2): ¸Ðл»Ø¸´°ïÖú£¡ 2011-08-10 17:05:49
zhzz85(½ð±Ò+5): лл°¡£¡ËäÈ»ÎÒÒªµÄÊÇÁù·½Ïà¡£¡£¡£ 2011-09-02 10:49:29
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*data for   ICSD #60257
Coll Code   60257
Rec  Date   1986/12/03
Mod  Date   2006/04/01
Chem Name   Sodium Yttrium Fluoride - Ht
Structured  Na Y F4
Sum         F4 Na1 Y1
ANX         AX2
D(calc)     3.81
Title       Controlled massively defective crystalline solutions with the
            fluorite structure
Author(s)   Roy, D.M.;Roy, R.
Reference   Journal of the Electrochemical Society
            (1964), 111, 421-429
            Phase Transition
            (1992), 38, 127-220
Unit Cell   5.47 5.47 5.47 90. 90. 90.
Vol         163.67
Z           2
Space Group F m -3 m
SG Number   225
Cryst Sys   cubic
Pearson     cF12
Wyckoff     c a
Red Cell    F  3.867 3.867 3.867 60 60 60 40.917
Trans Red   0.500 0.500 0.000 / 0.000 0.500 0.500 / 0.500 0.000 0.500
Comments    Stable above 978 K (2nd ref., Tomaszewski), 964-978 K:
            P63/m
            The structure has been assigned a PDF number (experimental
            powder diffraction data): 77-2042
            Structure type : CaF2
            X-ray diffraction (powder)
            No R value given in the paper.
            At least one temperature factor missing in the paper.
Atom  #   OX   SITE      x           y           z           SOF      H
Na   1  +1    4 a   0           0           0              0.5        0   
Y    1  +3    4 a   0           0           0              0.5        0   
F    1  -1    8 c   0.25        0.25        0.25           1.         0   
*end for    ICSD #60257
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