Which of the Following Is the Best Definition of a Pair

question 20

Multiple Choice

Which of the following is the best definition of a pair of atropisomers?

• A) A pair of enantiomers which do not interconvert.
• B) A pair of enantiomers which lack chiral centers.
• C) A pair of enantiomeric structures which lack chiral centers and interconvert by rotation around carbon-carbon single bonds.
• D) A pair of enantiomers which lack chiral centers and do not interconvert because of hindered rotation around carbon-carbon single bonds.

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