8
ethane (staggered)
C    0.0000    0.0000    0.7668
C    0.0000    0.0000   -0.7668
H   -0.5186   -0.8982    1.1330
H    1.0371    0.0000    1.1330
H   -0.5186    0.8982    1.1330
H    0.5186   -0.8982   -1.1330
H   -1.0371    0.0000   -1.1330
H    0.5186    0.8982   -1.1330
