As we’ve said, the difference in energy between the eclipsed and staggered conformations is 2.9 kcal/mol, which is the activation energy (E a ) required to proceed from one staggered conformation to t...As we’ve said, the difference in energy between the eclipsed and staggered conformations is 2.9 kcal/mol, which is the activation energy (E a ) required to proceed from one staggered conformation to the closest eclipsed conformation. This is highly stabilizing since not only is a \(σ_{C-C}\) bond a slightly better donor than \(σ_{C-H}\), but because the \(σ^{*}_{C-C}\) is lower in energy than the \(σ^{*}_{C-H}\) (consider the effects of electronegativity and bond length).
Representing conformations of simple organic molecules, including ethane and butane, by Sawhorse and Newman projections, drawing chair conformations of cyclohexane and substituted cyclohexane, and rel...Representing conformations of simple organic molecules, including ethane and butane, by Sawhorse and Newman projections, drawing chair conformations of cyclohexane and substituted cyclohexane, and relative stability of the conformational isomers are described.
