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1. Diastereomers have differing physical properties. Explain how their differing shapes results in differing physical properties....

1. Diastereomers have differing physical properties. Explain how their differing shapes results in differing physical properties.

Diastereomers have differing chemical properties.   Explain this fact based upon energy and VSEPR theory.

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Answer #1

Diastereomers are stereoisomers that are not mirror images of each other. They can have different physical properties. They have different melting points and boiling points and different densities.

Diastereomers have different molecular shape and volume, as a result, they will pack together in different ways and will have different physical properties.

Diastereomers have different chemical properties due to different arrangement of atom.

For example cis-butenedioic acid and trans--butenedioic acid

cis-butenedioic acid gives cyclic anhydride on heating while trans--butenedioic acid shows no reaction. Both have same molecular formula but because of difference in spatial arrangement of atoms they show different chemical behaviour.

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