Conformers

d_D

d_A

angle

Methyl-eclipsed 1-propyl cation^a

1.632 (C₂C₃)

1.439 (C₁C₂)

83.4

Unsymmetrical corner-protonated cyclopropane^b

1.716 (C₂C₃)

1.408 (C₁C₂)

71.2

Methyl-staggered 1-propyl cation^a

1.592 (C₂C₃)

1.474 (C₁C₂)

101.5

Methyl-staggered 1-propyl cation^a

1.541 (C₂C₃)

1.492 (C₁C₂)^c

115.7

Classical 2-norbornyl cation^d

1.552 (C₁C₆)

1.409 (C₁C₂)

115.7

Classical 2-norbornyl cation^d

1.671 (C₁C₇)

1.409 (C₁C₂)

 87.0