Dear Paolo,

According to https://goldbook.iupac.org/terms/view/P04921
your interpretation is certainly the correct one.
I still have to find how this r/s assignment is determined.

Many thanks again,

Jean-Marc


Le 26/05/2021 à 22:40, Paolo Tosco a écrit :
Dear Jean-Marc,

I believe it indicates what the IUPAC Gold Book refers to as pseudoasymmetry.
Let’s see if others agree with my interpretation.

Cheers,
P.

On 26 May 2021, at 22:28, Jean-Marc Nuzillard <jm.nuzill...@univ-reims.fr> 
wrote:

I believed I sent a message with the same title a few minutes ago, but 
apparently something went wrong.

Reading the RDKit book about function FindMolChiralCenters(),
I saw that it provides a better handling of para-stereochemisry.
This concept is not familiar to me.
Google did not help and sent me back to the RDKit Book.
So, what is para-stereochemistry?

Best regards,

Jean-Marc

--
Jean-Marc Nuzillard
Directeur de Recherches au CNRS

Institut de Chimie Moléculaire de Reims
CNRS UMR 7312
Moulin de la Housse
CPCBAI, Bâtiment 18
BP 1039
51687 REIMS Cedex 2
France

Tel : 03 26 91 82 10
Fax : 03 26 91 31 66
http://www.univ-reims.fr/icmr
http://eos.univ-reims.fr/LSD/CSNteam.html

http://www.univ-reims.fr/LSD/
http://www.univ-reims.fr/LSD/JmnSoft/



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--
Jean-Marc Nuzillard
Directeur de Recherches au CNRS

Institut de Chimie Moléculaire de Reims
CNRS UMR 7312
Moulin de la Housse
CPCBAI, Bâtiment 18
BP 1039
51687 REIMS Cedex 2
France

Tel : 03 26 91 82 10
Fax : 03 26 91 31 66
http://www.univ-reims.fr/icmr
http://eos.univ-reims.fr/LSD/CSNteam.html

http://www.univ-reims.fr/LSD/
http://www.univ-reims.fr/LSD/JmnSoft/



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