I Rb 
 1.0000000000000000
     6.8784998131425041   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    6.8784998131425041    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    6.8784998131425041
 I   Rb 
   4   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  3.4392499065712512  3.4392499065712512   T   T   T
  3.4392499065712512  0.0000000000000000  3.4392499065712512   T   T   T
  3.4392499065712512  3.4392499065712512  0.0000000000000000   T   T   T
  3.4392499065712512  3.4392499065712512  3.4392499065712512   T   T   T
  3.4392499065712512 -0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  3.4392499065712512  0.0000000000000000   T   T   T
 -0.0000000000000000  0.0000000000000000  3.4392499065712512   T   T   T