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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?

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  • $\begingroup$ Consider H-bonding. $\endgroup$ – Sawarnik Mar 16 '17 at 7:59
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I presume it is in the gauche form that its energy is minimun because of possible hydrogen bonding between the hydroxy groups

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

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  • $\begingroup$ sorry i've just realised that I meant a diol. $\endgroup$ – lalalalala Mar 13 '17 at 10:59

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