# lowest energy conformation of butan-2,4-diol

Do the OH groups want to be furthest apart? or the CH3 groups?

I'm trying to determine the lowest energy conformation - and I don't know which group has the bigger steric effect?

• Consider H-bonding. Mar 16 '17 at 7:59

I presume it is in the gauche form that its energy is minimun because of possible hydrogen bonding between the hydroxy groups

In butan-2-ol you have one alcohol, which is indeed smaller than the methyl group.

• sorry i've just realised that I meant a diol. Mar 13 '17 at 10:59