R And S Confrigation

[mindblowing]

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can someone plaese explain R and S ?
i am really confuse about it?

 

[Orgodox]

R and S simply refer to the spacial arrangement around the central atom. It it just a way to refer to it so we can visualize the same thing it doesnt actually mean light will be rotated + or - or anything like that. Maybe this link will explain it if not just do a search on google to read about it
http://www.chem.uic.edu/web1/OCOL-II/WIN/STEREO/F13.HTM