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kungao.nan(½ð±Ò+1):²»¶Ô£¬µ«ºÜÈÈÐÄ 2010-06-13 14:20:20
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*data for   ICSD #201583
Coll Code   201583
Rec  Date   1985/08/06
Mod  Date   1997/05/13
Chem Name   Niobic Acid
Structured  H Nb O3
Sum         H1 Nb1 O3
ANX         AX3
D(calc)     4.22
Title       La reaction d'echange topotactique Li Nb O3 -> H Nb O3 en milieu
            acide
Author(s)   Fourquet, J.L.;Renou, M.F.;de Pape, R.
Reference   Revue de Chimie Minerale
            (1984), 21, 383-390
Unit Cell   7.645(2) 7.645(2) 7.645(2) 90. 90. 90.
Vol         446.82
Z           8
Space Group I m -3
SG Number   204
Cryst Sys   cubic
Pearson     cI40
Wyckoff     g c
Red Cell    I  6.620 6.620 6.620 109.471 109.471 109.471 223.41
Trans Red   0.500 0.500 -0.500 / -0.500 0.500 0.500 / 0.500 -0.500 0.500
Comments    Total SOF on at least one site differs from unity (SOF <
            0.997 resp. SOF > 1.003)
            The structure has been assigned a PDF number (calculated
            powder diffraction data): 01-084-0694
            Structure type : HNbO3
            X-ray diffraction from single crystal
            No R value given in the paper.
            At least one temperature factor is implausible or
            meaningless but agrees with the value given in the paper.
Atom  #   OX   SITE      x           y           z           SOF      H        ITF(B)   
Nb   1  +5    8 c   0.25        0.25        0.25           1.         0        1.38(22)
O    1  -2    24 g  0           0.189(2)    0.289(3)       1.         0        2.34(28)
H    1  +1    24 g  0           0.060(21)   0.304(27)      0.17       0        3.04(20)
H    2  +1    24 g  0           0.196       0.44           0.17       0        3.04(20)
*end for    ICSD #201583
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kungao.nan(½ð±Ò+2):ÔÙ×·¼Ó½ð±Ò£¬ËäȻûÓжԣ¬µ«¸ÐлÈÈÐÄ 2010-06-13 14:27:43
wsht212(½ð±Ò+1):лл½»Á÷£¬Ï£Íû³£À´£¡ 2010-06-14 09:17:40
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Originally posted by kungao.nan at 2010-06-13 10:09:47:
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kungao.nan(½ð±Ò+1):лл֧³Ö 2010-06-17 08:06:52
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