The six-membered rings exhibit slightly distorted chair, extremely distorted chair and half-chair conformation respectively, and the five-memberedring exhibits an envelope conformation.
其中六元环分别呈现微扭曲的椅式构象、严重扭曲的椅式构象及半椅式构象；
2
All transition states, activation energies and potential curves of four possible reaction paths were obtained. It was found that the homolysis of n-no2 bond in five-memberedring is the initial step.