Question

For molecule of butane CH3CH2CH2CH3, hold one CH3 group at the end of the molecule, look down the C2-C3 axis as you rotate the CH3 GROUP AT THE OPPOSITE END.Now draw a three-dimensional dash-wedge formula and sawhorse formula for the lowest energy conformation of butane.

Answer 1

butane CH₂-CH₃ CH₂ CH3 2 3 Cerbergen wedge Formula C113 CH3 my back Carbon 3 wwwH H X H # 4 From Corbasy K H V Front Froost carbon CHB Staggered auti H back Carbon 빠서 te - Front Carlos Staggered gauche CHCH3 Eclised SU Celly X IHH AGT Energy U CH3 CH3 → Staggered TH CHSH HKH CA do 60 shoot into 4 800 12Dihedral Angle o 10 .240 300 300

Dihydral Angle 120° 180 oo eclipsed Staggered staggered | eclipsed gauche and loweast Energy lowealt 240 Energy 300" staggered e'clipsed Gauche => eclisped is highest energy due less stalde staggered Anty is loweast energy duce more stable