%chk=\\icfs16.cc.ic.ac.uk\bw08\Desktop\Tues Mod 3\ethene opt 1.chk
# opt am1 geom=connectivity

ethene opt

0 1
 C                 -1.24590164   -0.83606556    0.00000000
 H                 -0.71273789   -1.76377048    0.00000000
 H                 -2.31590164   -0.83606556    0.00000000
 C                 -0.57062733    0.33891174    0.00000000
 H                 -1.10379108    1.26661666    0.00000000
 H                  0.49937267    0.33891174    0.00000000

 1 2 1.0 3 1.0 4 2.0
 2
 3
 4 5 1.0 6 1.0
 5
 6