1. The diradical occurs in the two degenerate ? * antibonding orbitals . 2. After its transfer, the electron occupies an antibonding orbital of RCl. 3. The red color of is caused by electron transitions into an antibonding orbital . 4. The radical electron goes in an antibonding orbital ? 5. Antibonding orbitals are also important for explaining chemical reactions in terms of molecular orbital theory.6. A ? * orbital, pi antibonding orbital , will also produce a phase change when rotated about the internuclear axis. 7. The three states only differ in the occupancy and spin states of electrons in the two degenerate ? * antibonding orbitals . 8. The metal donates electrons back from ( a different ) filled d-orbital into the empty ? * antibonding orbital . 9. If the species shifted antarafacially then it would form an antibonding orbital and there would not be a constructive sigma shift. 10. Due to conservation of orbital symmetry, the bonding orbital ? AS is forced to correlate with the antibonding orbital ? * AS.