5
Methane; experimental structure from HCP92; m
C  0.0000  0.0000  0.0000
H  0.6276 -0.6275  0.6276
H -0.6276  0.6276  0.6276
H -0.6276 -0.6276 -0.6276
H  0.6276  0.6276 -0.6276