CoreCIFchem Discussion #6
Howard Flack crystal at flack.chMon Jan 3 18:22:48 GMT 2005
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David: As promised I attach a list of stereodescriptor symbols for chirality taken from the IUPAC stereochemistry dictionary. This completes those indicated in my reply to #6. Happy New Year to you, Howard -------------- next part -------------- Stereodescriptors for chirality: For whole molecules or groups ============================= D, L, DL (upright NOT italics) Ra, Sa (R, S in italics, a upright NOT subscript) for axial chirality Rp, Sp (R, S in italics, p upright subscript) for planar chirality P, M (P, M in italic) Delta, Lambda (Greek upper case) rac, racem, (+/-), rel (italics) ent (italics) meso (italics) [(+) and (-) specify optical activity under specified conditions. This enables enantiomers to be characterised and distinguished but it does not specifty their chirality.] For individual atoms ==================== R, S, R*, S*, RS, SR (R, S in italic)
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