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Unformatted text preview: 2-butanol. Achiral Molecules Achiral molecules do not exist in two unique stereoisomeric forms that are mirror image related (enantiomers). The mirror image of an achiral molecule can be superimposed upon the original structure. Example: 2-Propanol C H OH CH 3 CH 3 A C CH 3 H HO CH 3 B Stereostructure B is the mirror image of A . But, B may be superimposed on A by a rotation of 180 o , as shown. rotate Stereostructures A and B represent two different views of the same structure. They are not unique stereoisomeric forms of 2-propanol. 2-Propanol is an achiral molecule ....
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