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*data for   ICSD #20227
Coll Code   20227
Rec  Date   1986/09/25
Mod  Date   2007/08/01
Chem Name   Manganese(IV) Oxide - Alpha
Structured  Mn O2
Sum         Mn1 O2
ANX         AX2
D(calc)     4.21
Title       The structure of the modifications of manganese(IV) oxide
Author(s)   Kondrashev, Yu.D.;Zaslavskii, A.I.
Reference   Izvestiya Akademii Nauk SSSR, Seriya Fizicheskaya
            (1951), 15, 179-186
            Golden Book of Phase Transitions, Wroclaw
            (2002), 1, 1-123
Unit Cell   9.815(1) 9.815(1) 2.847(1) 90. 90. 90.
Vol         274.26
Z           8
Space Group I 4/m
SG Number   87
Cryst Sys   tetragonal
Pearson     tI24
Wyckoff     h3
Red Cell    I  2.847 7.084 7.084 87.686 78.408 78.408 137.132
Trans Red   0.000 0.000 1.000 / -0.500 -0.500 0.500 / 0.500 -0.500 0.500
Comments    AE: Mn: 6o O6; O1: 3n Mn3; O2: 3l Mn3
            Standardized by Structure Tidy
            A LT-form exists in Pnam (2nd ref., Tomaszewski), cf. 20228
            The structure has been assigned a PDF number (calculated
            powder diffraction data): 01-072-1982
            The structure has been assigned a PDF number (experimental
            powder diffraction data): 44-141
            Structure type prototype : MnO2
            Structure type : MnO2
            X-ray diffraction from single crystal
            No R value given in the paper.
            At least one temperature factor missing in the paper.
Atom  #   OX   SITE      x           y           z           SOF      H
Mn   1  +4    8 h   0.350(5)    0.170(5)    0              1.         0   
O    1  -2    8 h   0.160(5)    0.205(5)    0              1.         0   
O    2  -2    8 h   0.160(5)    0.458(5)    0              1.         0   
*end for    ICSD #20227
2Â¥2009-05-06 09:08:19
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