Use the References to access important values if needed for this question Two no

Question

Use the References to access important values if needed for this question Two nonsuperimposable molecules are shown in the windows below: ball & sticK bail & stick labes labels 1. How many stereocenters are there in the molecule on the left? 2. What is the total number of stereoisomers in the group that includes the molecule on the left? 3. How many stereocenters are there in the molecule on the right? 4. What is the total number of stereoisomers in the group that includes the molecule on the right? S. Are the two molecules enantiomers, diastereomers, constitutional isomers or not isomers of any kind? Submit Answer Retry Entire Group 9 more group attempts remaining oups sb 12 at

Explanation / Answer

ANS 1: There are two stereo centres in the molecule in left i.e. the second and the third carbon.

ANS 2: There are total 2n stereoisomers for even number of chiral centres. Here n is 2 so the number of stereoisomers is 4.

ANS 3: There are two stereo centres in the molecule in right i.e. the second and the third carbon.

ANS 4: There are total 2n stereoisomers for even number of chiral centres. Here n is 2 so the number of stereoisomers is 4.

ANS 5: The two molecules are diastereomers because the molecule in the left has 2S,3R configuration at the chiral centres and the molecule in the right has 2R,3R configuration at the chiral centres. Also they are not mirror images of each other hence are diastereomers.

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