K3Nb3B2O12
Choisnet J, Groult D, Raveau B, Gasperin M
Acta Crystallographica B33 (1977) 1841-1845
Nouvelles structures a tunnels de section pentagonale
K3Nb3B2O12 et K3Ta3B2O12
_cod_database_code 1001008
_database_code_amcsd 0009593
34.01 34.01 3.966 90 90 120 P31m
atom     x     y      z
K1   .1489     0  .4596
K2   .3983     0  .4585
K3   .6490     0  .4493
K4   .8996     0  .4687
K5   .1482 .2480  .4583
K6   .1492    .5  .4641
K7   .1502 .7523  .4543
K8   .1013 .3500  .4523
K9   .1003 .6009  .4583
K10  .3523 .6007  .4723
Nb1  .0617     0      0
Nb2  .3110     0 -.0738
Nb3  .5612     0 -.0664
Nb4  .8126     0 -.0140
Nb5  .0609 .2498 -.0648
Nb6  .0611 .4990 -.0277
Nb7  .0622 .7508 -.0733
Nb8  .1873 .4381 -.0676
Nb9  .1888 .6883 -.0204
Nb10 .4389 .6888  .0071
O1   .2053     0 -.0004
O2   .4537     0 -.0409
O3   .7067     0 -.0904
O4   .9546     0 -.0630
O5   .2032 .2468  .0021
O6   .2056 .4999 -.0313
O7   .2039 .7501 -.0425
O8   .0457 .2935 -.0372
O9   .0461 .5471 -.0489
O10  .2961 .5458 -.0668
O11  .0606     0  .4316
O12  .3100     0  .4544
O13  .5673     0  .4816
O14  .8166     0  .4672
O15  .0610 .2439  .4667
O16  .0644 .4970  .4528
O17  .0644 .7541  .4809
O18  .1848 .4305  .4519
O19  .1839 .6827  .4512
O20  .4341 .6811  .4512
O21  .1255 .0465 -.0867
O22  .1255 .2960 -.0151
O23  .1251 .5465 -.0364
O24  .1256 .7934 -.0691
O25  .3771 .0489 -.0044
O26  .3771 .2968  .0015
O27  .3751 .5475 -.0540
O28   .376 .7952 -.0674
O29  .6277 .0473 -.0204
O30  .6254 .2963 -.0015
O31  .6244 .5461 -.0191
O32  .6262 .7974 -.0847
O33  .8771 .0470 -.0385
O34  .8763 .2959 -.0374
O35  .8750 .5466 -.0568
O36  .2015 .0784 -.0725
B1     1/3   2/3 -.0142
B2   .0831 .1673 -.0496
B3   .0821 .4166 -.0269
B4   .1678 .3359 -.0386
B5   .1674 .5845 -.0540
B6   .0822 .6654 -.0115