Question

Construct a molecule of butane, CH3CH2CH2CH3 and holding 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. Draw Saw horse, and wedge of all of the significantly different conformations of butane and comment of the different symmetry elements of these conformation.

Answer 1

hange 2 Butare си, си, си, ся W Why notation CH2 en3 gauche or skene nation OOH Eclipsed Conformation Achird 180° Saw- notation 120 (Cz-anes) rotatia V notation CH3 th H CH3 [E = 0 CH3 Antiform (CH₂-ch, at opposite end) gauche * -axis but no plane of symmetry at low temperature

CH₂ CH3 3 saw-house Newmann (Eclipsed) Concutinto Medge convent into wedge CH 3 wledge H₂C CH3 hauche same hown concent Newman into Wedge 4 k concert into Wedge Silicha wledge

сиз ) м- ч, си от (А) і ти ис Wedge