
1. A bonding orbital for C1C2 with 1.9911 electrons
__has 50.58% C 1 character in a sp2.30 hybrid
__has 49.42% C 2 character in a sp2.02 hybrid
2. A bonding orbital for C1H7 with 1.9841 electrons
__has 59.57% C 1 character in a s0.89 p3 hybrid
__has 40.43% H 7 character in a s orbital
3. A bonding orbital for C1H8 with 1.9917 electrons
__has 59.48% C 1 character in a s0.94 p3 hybrid
__has 40.52% H 8 character in a s orbital
4. A bonding orbital for C1H9 with 1.9840 electrons
__has 59.58% C 1 character in a s0.89 p3 hybrid
__has 40.42% H 9 character in a s orbital
5. A bonding orbital for C2C3 with 1.9936 electrons
__has 50.91% C 2 character in a sp1.51 hybrid
__has 49.09% C 3 character in a sp1.48 hybrid
6. A bonding orbital for C2C3 with 1.9823 electrons
__has 47.83% C 2 character in a ppi orbital ( 99.85% p 0.15% d)
__has 52.17% C 3 character in a ppi orbital ( 99.86% p 0.14% d)
7. A bonding orbital for C2H6 with 1.9787 electrons
__has 59.06% C 2 character in a sp2.65 hybrid
__has 40.94% H 6 character in a s orbital
8. A bonding orbital for C3H4 with 1.9865 electrons
__has 59.27% C 3 character in a sp2.33 hybrid
__has 40.73% H 4 character in a s orbital
9. A bonding orbital for C3H5 with 1.9875 electrons
__has 58.93% C 3 character in a sp2.35 hybrid
__has 41.07% H 5 character in a s orbital
With core pairs on: C 1 C 2 C 3 
The interaction of bonding donor orbital, 2, for C1H7 with the second antibonding acceptor orbital, 105, for C2C3 is 20.7 kJ/mol.
The interaction of bonding donor orbital, 4, for C1H9 with the second antibonding acceptor orbital, 105, for C2C3 is 21.0 kJ/mol.
The interaction of bonding donor orbital, 7, for C2H6 with the antibonding acceptor orbital, 108, for C3H5 is 25.1 kJ/mol.
The interaction of bonding donor orbital, 8, for C3H4 with the antibonding acceptor orbital, 100, for C1C2 is 31.5 kJ/mol.
The interaction of bonding donor orbital, 9, for C3H5 with the antibonding acceptor orbital, 106, for C2H6 is 25.5 kJ/mol.
16  2.360
15  2.132
14  1.920
13  0.893
12 ^v 6.321
11 ^v 8.263
10 ^v 8.919
9 ^v 10.02
8 ^v 10.24
7 ^v 11.37
6 ^v 13.43
5 ^v 16.69
4 ^v 19.25
3 ^v 266.0
2 ^v 266.1
1 ^v 266.5
Total electronic energy = 117.9405940778 Hartrees