
1. A bonding orbital for C1C2 with 1.9969 electrons
__has 49.94% C 1 character in a sp2.62 hybrid
__has 50.06% C 2 character in a sp2.19 hybrid
2. A bonding orbital for C1H3 with 1.9918 electrons
__has 59.81% C 1 character in a s0.97 p3 hybrid
__has 40.19% H 3 character in a s orbital
3. A bonding orbital for C1H4 with 1.9867 electrons
__has 59.33% C 1 character in a s0.93 p3 hybrid
__has 40.67% H 4 character in a s orbital
4. A bonding orbital for C1H5 with 1.9918 electrons
__has 59.80% C 1 character in a s0.97 p3 hybrid
__has 40.20% H 5 character in a s orbital
5. A bonding orbital for C2H6 with 1.9904 electrons
__has 57.55% C 2 character in a s0.98 p3 hybrid
__has 42.45% H 6 character in a s orbital
6. A bonding orbital for C2H7 with 1.9904 electrons
__has 57.55% C 2 character in a s0.98 p3 hybrid
__has 42.45% H 7 character in a s orbital
7. A bonding orbital for C2F8 with 1.9968 electrons
__has 26.97% C 2 character in a s0.73 p3 hybrid
__has 73.03% F 8 character in a sp2.87 hybrid
11. A lone pair orbital for F8 with 1.9952 electrons
__made from a sp0.36 hybrid
12. A lone pair orbital for F8 with 1.9814 electrons
__made from a ppi orbital ( 99.98% p)
13. A lone pair orbital for F8 with 1.9810 electrons
__made from a p3 hybrid
With core pairs on: C 1 C 2 F 8 
The interaction of bonding donor orbital, 3, for C1H4 with the antibonding acceptor orbital, 102, for C2F8 is 22.5 kJ/mol.
The interaction of the second lone pair donor orbital, 12, for F8 with the antibonding acceptor orbital, 100, for C2H6 is 23.1 kJ/mol.
The interaction of the second lone pair donor orbital, 12, for F8 with the antibonding acceptor orbital, 101, for C2H7 is 24.2 kJ/mol.
The interaction of the third lone pair donor orbital, 13, for F8 with the antibonding acceptor orbital, 96, for C1C2 is 27.2 kJ/mol.
17  2.976
16  1.835
15  1.750
14  0.950
13 ^v 7.740
12 ^v 7.981
11 ^v 9.449
10 ^v 9.553
9 ^v 10.87
8 ^v 11.97
7 ^v 12.06
6 ^v 15.35
5 ^v 18.79
4 ^v 28.98
3 ^v 266.3
2 ^v 268.3
1 ^v 654.9
Total electronic energy = 179.1278145821 Hartrees