COL  ICSD Collection Code 39728
 DATE Recorded Jun 30, 1994
 NAME Potassium niobium cyclo-trigermanate oxide (3.8/5/3/11.4)
 FORM K3.8 Nb5 (Ge3 O9) O11.4
      = Ge3 K3.8 Nb5 O20.4
 TITL Crystal structure of a new circled germanate K3.8Nb5(Ge3O9)O11.4
 REF  Zhurnal Neorganicheskoi Khimii
      ZNOKA 38 (1993) 1455-1460
 AUT  Belokoneva E L, Mill'ÿBÿV, ButashinÿAÿV
 CELL a=7.064 b=12.177 c=22.113 à=90.0 á=90.0 ç=90.0
      V=1902.1 Z=4
 SGR  P b c 21      (29) - orthorhombic
 CLAS mm2   (Hermann-Mauguin) - C2v (Schoenflies)
 PRS  oP129
 ANX  A12B15C20X82
 PARM Atom__No OxStat  Wyck ---X--- ---Y--- ---Z---  -SOF-
      Nb     1  5.000    4a -0.2122 -0.0816  0.1345
      Nb     2  5.000    4a -0.292  -0.0805  0.366
      Nb     3  5.000    4a -0.0525  0.0231  0.4985
      Nb     4  5.000    4a  0.5476  0.0261  0.0019
      Nb     5  5.000    4a -0.2223 -0.2591  0.0018
      Ge     1  4.000    4a -0.2471  0.1062  1/4
      Ge     2  4.000    4a  0.0353 -0.1692  0.2556
      Ge     3  4.000    4a  0.463  -0.1742  0.2426
      K      1  1.000    4a -0.245   0.243   0.094
      K      2  1.000    4a -0.265   0.253   0.403     0.8
      K      3  1.000    4a -0.267  -0.091   0.653
      K      4  1.000    4a -0.243  -0.079   0.85
      O      1 -2.000    4a  0.598   0.198   0.214
      O      2 -2.000    4a  0.931   0.193   0.287
      O      3 -2.000    4a  0.501   0.041   0.914
      O      4 -2.000    4a  0.998   0.053   0.586
      O      5 -2.000    4a  0.862   0.04    0.19
      O      6 -2.000    4a  0.634   0.001   0.087
      O      7 -2.000    4a  0.619   0.039   0.305
      O      8 -2.000    4a  0.893   0.026   0.416
      O      9 -2.000    4a  0.224   0.203   0.915
      O     10 -2.000    4a  0.265   0.218   0.587
      O     11 -2.000    4a  0.659   0.067   0.52
      O     12 -2.000    4a  0.731   0.113   0.782
      O     13 -2.000    4a  0.811   0.059   0.981
      O     14 -2.000    4a  0.11    0.116   0.812
      O     15 -2.000    4a  0.409   0.183   0.812
      O     16 -2.000    4a  0.47    0.08    0.69
      O     17 -2.000    4a  0.079   0.187   0.69
      O     18 -2.000    4a  0.519   0.191   0.002
      O     19 -2.000    4a  0.028   0.158   0.483
      O     20 -2.000    4a  0.163   0.11    0.483     0.5
      O     21 -2.000    4a  0.371   0.124   0.471
 WYCK a33
 ITF  Nb  1   B=1.9(2)
 ITF  Nb  2   B=2.8(2)
 ITF  Nb  3   B=2.6(2)
 ITF  Nb  4   B=3.7(2)
 ITF  Nb  5   B=4.0(2)
 ITF  Ge  1   B=0.92(6)
 ITF  Ge  2   B=1.8(2)
 ITF  Ge  3   B=1.7(2)
 ITF  K   1   B=3.8(5)
 ITF  K   2   B=3.7(7)
 ITF  K   3   B=2.7(4)
 ITF  K   4   B=2.6(4)
 ITF  O   1   B=1.1(15)
 ITF  O   2   B=1.9(6)
 ITF  O   3   B=2.5(6)
 ITF  O   4   B=1.4(5)
 ITF  O   5   B=1.3(4)
 ITF  O   6   B=1.4(5)
 ITF  O   7   B=1.0(5)
 ITF  O   8   B=1.7(6)
 ITF  O   9   B=4.3(11)
 ITF  O  10   B=6.8(11)
 ITF  O  11   B=9.1(14)
 ITF  O  12   B=2.4(6)
 ITF  O  13   B=3.0(8)
 ITF  O  14   B=3.1(8)
 ITF  O  15   B=6.6(12)
 ITF  O  16   B=0.8(4)
 ITF  O  17   B=5.0(9)
 ITF  O  18   B=6.5(10)
 ITF  O  19   B=4.7(9)
 ITF  O  20   B=9.9(23)
 ITF  O  21   B=8.8(2)
 RVAL 0.079
 TEST Difference between the formula calculated from the PARM record and 
      the FORM record tolerable. (Code 21)
 TEST Deviation of the charge sum from zero tolerable. (Code 22)