# type topo
# cell     1.842300     1.842300     2.567700    90.000000    90.000000   120.000000
8
  1 x12    0.000000    0.000000    0.000000   0                              6/9      6/12       8/0       8/9      3/13      3/10      4/13       4/1       5/1      5/10       7/0      7/12 
  2 o     -0.000092    1.063706    1.283850   1                             5/13      3/13      6/13      8/13      4/13      7/13 
  3 n     -0.330886    0.872615    0.361429   2                             1/13      1/16      2/13 
  4 n      0.330886    0.872615    0.361429   2                             1/13      1/25      2/13 
  5 n      0.000000    1.445727    0.361429   2                             1/25      1/16      2/13 
  6 n     -0.330886    0.872615    2.206271   2                             1/17      1/14      2/13 
  7 n      0.330886    0.872615    2.206271   2                             1/26      1/14      2/13 
  8 n      0.000000    1.445727    2.206271   2                             1/26      1/17      2/13