How to Recognize a Pair of Enantiomers from Different Projections – Part 2

Enantiomers (aka optical isomer, antipode, or optical antipode) are non-superimposable mirror images of a pair of molecular entities.


For the Mills projection formula, a 180º rotation in the plane of the paper (or screen) does not convert the structure to the other enantiomer, but flipping the structure over (a 180º rotation out of the plane) does.

Question:

Which two formulas represent a pair of enantiomers?



Click/tap to enlarge the image

Solution infographic:



Click/tap to enlarge the image

Mesmerizing Mills projections❓ Let Chemaficionado know in the comments below or at mychemistryhomework@gmail.com❗

References:

(1)    Ncert. Chemistry : Textbook for Class XI - Part.II; National Council Of Educational Research And Training: New Delhi.

(2)    Graham, T. W.; Fryhle, C. B.; Snyder, S. A. Organic Chemistry.; Hoboken, Nj John Wiley Et Sons, Inc, 2016.

(3)    Brown, C.; Ford, M. Higher Level Chemistry, 2nd ed.; Pearson Education: Harlow, Essex, 2014.

(4)    Reusch, W. Virtual Textbook of Organic Chemistry. Msu.edu. https://www2.chemistry.msu.edu/faculty/reusch/VirtTxtJml/intro1.htm.

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