Steric comparisons


Decalin

Cis: +2.8 kcal/mol
Trans: 0 kcal/mol

2-methyl-1-butene

Form 1:  0 kcal/mol
 Form 2:  a13 strain +0.1 kcal/mol
 Form 3:  a12 strain +7 kcal/mol