18
PCM
 C                  0.00000000    0.00000000    0.00000000
 C                  1.39388418    0.00000000    0.00000000
 C                  2.12310837    1.25103341    0.00000000
 O                  1.59761180    2.36982252    0.03700446
 H                 -0.49836825    0.93727744   -0.23013070
 H                 -0.52361295   -0.89989497   -0.31452174
 H                  1.97355359   -0.91866593   -0.10512162
 H                  3.22825997    1.15754281   -0.05431188
 C                 -0.74320704   -0.12697758    1.93316753
 C                 -0.15982568    0.92214577    2.63359432
 C                  1.22197854    0.96554477    2.93401268
 C                  2.09928183   -0.01631473    2.55979923
 H                 -1.82062584   -0.08793272    1.72649759
 H                 -0.34904092   -1.13307446    2.04425847
 H                  3.17017885    0.11166232    2.69468576
 H                  1.77612940   -1.01363552    2.28739756
 H                 -0.74292390    1.82758229    2.79961198
 H                  1.61890313    1.89502660    3.34125336
