Map Sapling Learning A three dimensional representation of butane is shown on th

Question

Map Sapling Learning A three dimensional representation of butane is shown on the left. Translate the information about the conformation of butane into its Newman projection on the right, and determine if this conformation represents a local energy minimum or a global energy minimurm Click inside the box to open the rotation controls Use the tabs to select either an eclipsed or staggered Newman rojection, and drag the groups to their correct locations edipaed CH3 CH3 CH3 s conformation of butane represents a O local energy minimum O global energy minimum. Incorrect. You selected the eclipsed Newman projection. Rotate the 3D image, and reconsider the appropriate Newman projection in this case Previous Give Up & View Solution # Try Again Next Exit

Explanation / Answer

Note that there are only 2 carbons ( dark grey, large balls)

therefore

all boxes must be Hydrogens

this is a local energy MAXIMUM

since they are eclpised:

- ECLIPSED --> Half of the Groups are 0° away from each other, the other half is at 120°.. This requires higher energy since it takes more energy to get together at the 0° configuration.

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