Institute of Experimental Mineralogy
                 Russian Academy of Sciences
     -------------------------------------------------
           142432, Chernogolovka, Moscow district
             A.V. Chichagov  +7(496)52-22320

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          ***      W W W - X R A Y P O L       ***
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NITROBARITE

3, Sr-analogue

Sr[NO(3)](2)


Cubic  P a3  Z = 4

Pa3

12 .10 .18

Ref.Str.:

         Nowotny H, Heger G. (1983)

         * Acta Cryst., C39, 952-956

         R: N.A.D.

                   Initial data from BDM-file 

   Lattice parameters (cub. angs.,degr.):

             a =   7.7813   alpha =   90.0 
             b =   7.7813   beta  =   90.0 
             c =   7.7813   gamma =   90.0 

    Unit cell volume (cub. angs.) =   471.15

    Molar volume ( cub.cm/mol.) =    70.95

  Co-ordinates, thermal parameters, occupation for atomic positions:

NoP   x/a     y/b     z/c    B(j)   atom  / occupation

   1 0.0     0.0     0.0      0.0    Sr    = 1.00
   2 0.3451  0.3451  0.3451   0.0    N     = 1.00
   3 0.2738  0.285   0.4754   0.0    O     = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.0        0.0        0.0   
     2       2     0.3451     0.3451     0.3451
     3       3     0.2738     0.285      0.4754
     4       2     0.6549     0.6549     0.6549
     5       3     0.7262     0.715      0.5246
     6       1     0.5        0.0        0.5   
     7       2     0.1549     0.6549     0.8451
     8       3     0.2262     0.715      0.9754
     9       2     0.8451     0.3451     0.1549
    10       3     0.7738     0.285      0.0246
    11       1     0.5        0.5        0.0   
    12       2     0.1549     0.8451     0.3451
    13       3     0.2262     0.785      0.4754
    14       2     0.8451     0.1549     0.6549
    15       3     0.7738     0.215      0.5246
    16       1     0.0        0.5        0.5   
    17       2     0.3451     0.1549     0.8451
    18       3     0.2738     0.215      0.9754
    19       2     0.6549     0.8451     0.1549
    20       3     0.7262     0.785      0.0246
    21       3     0.285      0.4754     0.2738
    22       3     0.4754     0.2738     0.285 
    23       3     0.715      0.5246     0.7262
    24       3     0.5246     0.7262     0.715 
    25       3     0.715      0.9754     0.2262
    26       3     0.9754     0.2262     0.715 
    27       3     0.285      0.0246     0.7738
    28       3     0.0246     0.7738     0.285 
    29       3     0.785      0.4754     0.2262
    30       3     0.4754     0.2262     0.785 
    31       3     0.215      0.5246     0.7738
    32       3     0.5246     0.7738     0.215 
    33       3     0.215      0.9754     0.2738
    34       3     0.9754     0.2738     0.215 
    35       3     0.785      0.0246     0.7262
    36       3     0.0246     0.7262     0.785 


X-ray density (g/cm cub.)   =      2.98

MU (1/cm) =     172.883    Mass attenuation coefficient (cm**2/g) =     57.965

 Selected interatomic distances (cation-anion,anion-anion):

 NoP    Atom              Rad.sph.      C.N.    Distance     NoP N.
                           (angs.)               (angs.)

    1    Sr                  3.072       12
                                                 2.8381       3
                                                 2.8381       3
                                                 2.7152       3
                                                 2.7152       3
                                                 2.8381       3
                                                 2.8381       3
                                                 2.8381       3
                                                 2.8381       3
                                                 2.7152       3
                                                 2.7152       3
                                                 2.7152       3
                                                 2.7152       3
    2    N                   1.992        3
                                                 1.2467       3
                                                 1.2467       3
                                                 1.2467       3
    3    O                   3.264        8
                                                 2.1594       3
                                                 2.1594       3
                                                 3.0126       3
                                                 3.0829       3
                                                 2.9114       3
                                                 3.0126       3
                                                 2.9114       3
                                                 3.0829       3

  X-ray diffraction powder data (II),  X-Ray W.L. =   1.54056(angs.):

  No   H   K   L   Theta 2*Theta    S       LPG   MF        F          I int.
                    ( degree )                                         *100

    1   1   1   1  9.873  19.745   0.111   65.11    8      119.8     3367.1
    2   2   0   0 11.419  22.838   0.129   48.13    6       63.8      530.3
    3   2   1   0 12.788  25.577   0.144   37.96   12       68.6      967.0
    4   1   1   2 14.033  28.066   0.157   31.18   24       42.4      606.2
    5   2   2   0 16.26   32.519   0.182   22.74   12       83.2      851.1
    6   2   2   1 17.276  34.552   0.193   19.93   24       13.5       39.2
    7   1   1   3 19.167  38.333   0.213   15.86   24      133.6     3060.9
    8   2   2   2 20.055  40.109   0.223   14.35    8      217.4     2443.8
    9   2   3   0 20.911  41.822   0.232   13.07   12        6.3        2.8
   10   1   2   3 21.74   43.479   0.24    11.98   24       15.1       29.4
   11   3   2   1 21.74   43.479   0.24    11.98   24       11.8       18.1
   12   4   0   0 23.326  46.652   0.257   10.22    6      173.2      829.0
   13   2   2   3 24.089  48.177   0.265    9.5    24        8.0        6.5
   14   4   1   0 24.089  48.177   0.265    9.5    12       20.0       20.5
   15   1   1   4 24.834  49.667   0.273    8.86   24       33.9      110.3
   16   3   3   1 25.562  51.125   0.28     8.3    24       86.6      673.3
   17   2   4   0 26.276  52.553   0.287    7.79   12       91.8      354.9
   18   4   2   0 26.276  52.553   0.287    7.79   12       79.3      264.9
   19   1   2   4 26.977  53.954   0.294    7.34   24       25.8       52.8
   20   4   2   1 26.977  53.954   0.294    7.34   24        1.3        0.1
   21   3   3   2 27.666  55.331   0.301    6.93   24       15.7       18.5
   22   2   2   4 29.01   58.019   0.315    6.23   24       78.6      415.4
   23   4   3   0 29.667  59.334   0.321    5.92   12       16.8        9.0
   24   1   3   4 30.315  60.631   0.328    5.64   24       15.1       13.9
   25   4   3   1 30.315  60.631   0.328    5.64   24       13.4       11.0
   26   1   1   5 30.956  61.911   0.334    5.38   24       86.7      438.1
   27   3   3   3 30.956  61.911   0.334    5.38    8       97.3      183.7
   28   2   3   4 32.214  64.428   0.346    4.93   24        9.3        4.6
   29   2   5   0 32.214  64.428   0.346    4.93   12        1.9        0.1
   30   4   3   2 32.214  64.428   0.346    4.93   24       36.4       70.6
   31   1   2   5 32.833  65.667   0.352    4.74   24       17.9       16.4
   32   5   2   1 32.833  65.667   0.352    4.74   24        0.9        0.0
   33   4   4   0 34.054  68.109   0.363    4.38   12      151.0      540.6
   34   2   2   5 34.657  69.314   0.369    4.23   24        2.5        0.3
   35   4   4   1 34.657  69.314   0.369    4.23   24        3.9        0.7
   36   3   3   4 35.255  70.509   0.375    4.08   24       28.7       36.3
   37   1   3   5 35.848  71.696   0.38     3.95   24      100.6      432.3
   38   5   3   1 35.848  71.696   0.38     3.95   24      101.8      442.7
   39   4   4   2 36.438  72.875   0.386    3.83   24       70.7      207.1
   40   6   0   0 36.438  72.875   0.386    3.83    6      101.3      106.3
   41   6   1   0 37.023  74.047   0.391    3.72   12       35.7       25.6
   42   1   1   6 37.606  75.211   0.396    3.61   24       23.0       20.7
   43   2   3   5 37.606  75.211   0.396    3.61   24       19.9       15.5
   44   5   3   2 37.606  75.211   0.396    3.61   24        7.3        2.1
   45   2   6   0 38.761  77.522   0.406    3.42   12       59.6       65.8
   46   6   2   0 38.761  77.522   0.406    3.42   12       75.4      105.3
   47   1   2   6 39.335  78.67    0.411    3.34   24        0.7        0.0
   48   4   4   3 39.335  78.67    0.411    3.34   24        4.0        0.6
   49   4   5   0 39.335  78.67    0.411    3.34   12        4.0        0.3
   50   6   2   1 39.335  78.67    0.411    3.34   24       14.5        7.6
   51   1   4   5 39.906  79.813   0.416    3.27   24        7.2        1.8
   52   5   4   1 39.906  79.813   0.416    3.27   24        7.1        1.8
   53   3   3   5 40.476  80.952   0.421    3.2    24       95.4      314.5
   54   2   2   6 41.044  82.087   0.426    3.13   24      116.8      462.2
   55   2   4   5 41.61   83.219   0.431    3.08   24        7.0        1.6
   56   5   4   2 41.61   83.219   0.431    3.08   24       23.3       18.1
   57   6   3   0 41.61   83.219   0.431    3.08   12       22.1        8.1
   58   1   3   6 42.174  84.349   0.436    3.02   24       20.5       13.8
   59   6   3   1 42.174  84.349   0.436    3.02   24       16.1        8.4
   60   4   4   4 43.301  86.602   0.445    2.93    8      104.4      115.3
   61   2   3   6 43.863  87.726   0.45     2.89   24        0.9        0.0
   62   6   3   2 43.863  87.726   0.45     2.89   24        6.9        1.5
   63   3   4   5 44.425  88.85    0.454    2.86   24        1.2        0.0
   64   5   4   3 44.425  88.85    0.454    2.86   24       19.4       11.6
   65   1   1   7 44.986  89.973   0.459    2.83   24       84.0      215.6
   66   5   5   1 44.986  89.973   0.459    2.83   24       64.9      129.0


  X-ray diffraction powder data (I)...X-Ray wave length =  1.54056 (angs.):

  No   H   K   L   Theta 2*Theta    d           I int   I int.n.  I p.h.n.   H(Si)
                    ( degree )   (angstrem)     *100                         *100

    1   1   1   1   9.873  19.745  4.49254     3367.1    100.0    100.0     5.6
    2   2   0   0  11.419  22.838  3.89065      530.3     15.7     15.7     5.6
    3   2   1   0  12.788  25.577  3.4799       967.0     28.7     28.6     5.6
    4   1   1   2  14.033  28.066  3.1767       606.2     18.0     17.9     5.6
    5   2   2   0  16.26   32.519  2.75111      851.1     25.3     25.0     5.6
    6   2   2   1  17.276  34.552  2.59377       39.2      1.2      1.2     5.7
    7   1   1   3  19.167  38.333  2.34615     3060.9     90.9     89.5     5.7
    8   2   2   2  20.055  40.109  2.24627     2443.8     72.6     71.4     5.7
    9   1   2   3  21.74   43.479  2.07964       47.5      1.4      1.4     5.7
   10   4   0   0  23.326  46.652  1.94533      829.0     24.6     24.0     5.7
   11   1   1   4  24.834  49.667  1.83407      110.3      3.3      3.2     5.7
   12   3   3   1  25.562  51.125  1.78515      673.3     20.0     19.4     5.8
   13   2   4   0  26.276  52.553  1.73995      619.8     18.4     17.8     5.8
   14   1   2   4  26.977  53.954  1.69802       53.0      1.6      1.5     5.8
   15   2   2   4  29.01   58.019  1.58835      415.4     12.3     11.9     5.8
   16   1   1   5  30.956  61.911  1.49751      621.8     18.5     17.7     5.8
   17   4   3   2  32.214  64.428  1.44495       75.3      2.2      2.1     5.9
   18   4   4   0  34.054  68.109  1.37555      540.6     16.1     15.2     5.9
   19   3   3   4  35.255  70.509  1.33448       36.3      1.1      1.0     5.9
   20   5   3   1  35.848  71.696  1.31528      875.0     26.0     24.5     5.9
   21   4   4   2  36.438  72.875  1.29688      313.4      9.3      8.7     6.0
   22   1   1   6  37.606  75.211  1.26229       38.3      1.1      1.1     6.0
   23   6   2   0  38.761  77.522  1.23033      171.0      5.1      4.7     6.0
   24   3   3   5  40.476  80.952  1.18664      314.5      9.3      8.6     6.1
   25   2   2   6  41.044  82.087  1.17308      462.2     13.7     12.6     6.1
   26   4   4   4  43.301  86.602  1.12313      115.3      3.4      3.1     6.1
   27   1   1   7  44.986  89.973  1.0896       344.6     10.2      9.2     6.2

Reference:
Chichagov A.V. et al.
Information-Calculating System on Crystal Structure Data of Minerals
(MINCRYST)
- Kristallographiya, v.35, n.3, 1990, p.610-616 (in Russian)