Ir(100)-2x1_O
  2.711600
    1.0000000000000000    0.0000000000000000    0.0000000000000000
    0.0000000000000000    1.0000000000000000    0.0000000000000000
   -0.4999999999999996    0.5000000000000000    0.7071067800000000
   Ir
    1
Direct          Plane group = p4m                           
 -0.0000000000000004  0.5000000000000002  0.5000000000000000
