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in RS nomenclature for Rconfiguration which direction we have to take clock wise or anti clock wise

in RS nomenclature for Rconfiguration which direction we have to take clock wise or anti clock wise

Grade:12th pass

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Dear student

It is clockwise

Regards
Khimraj
3007 Points
4 years ago
If the arrow points in a counterclockwise direction ( left  when leaving the 12 o' clock position), the configuration at stereocenter is considered  S  ("Sinister" → Latin= "left").  If, however, the arrow points clockwise,( Right  when leaving the 12 o' clock position) then the stereocenter is labeled  R  ("Rectus" → Latin= "right"). The  R or S  is then added as a prefix, in parenthesis, to the name of the enantiomer of interest.

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