烷烃和环烷烃的构象异构 ●1. Ethane Staggered Eclipsed H H 60 H H H H H H Newman projection sawhorse proje ction Newman projection sawhorse projection Conformational analysis .--describes the energetic of such conformational interconversion一、烷烃和环烷烃的构象异构 1.Ethane Conformational analysis ---- describes the energetic of such conformational interconversion H H H H H H H H H H H H Staggered Newman projection sawhorse projection 600 H H H H H H H H H H H H Eclipsed 0 0 Newman projection sawhorse projection