A meso compound or meso isomer is a non-optically active member of a set of stereoisomers, at least two of which are optically active. This means that despite containing two or more stereocenters (chiral centers) it is not chiral. A meso compound is `superposable` on its mirror image (not to be confused with superimposable, as any two objects ca.....
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http://en.wikipedia.org/wiki/Meso_compound
<chemistry> A compound that has two or more chiral centres but does not rotate plane-polarized light because it has an internal plane of symmetry. These compounds are identical to their mirror images. ... (09 Jan 1998) ...
Found on
http://www.encyclo.co.uk/local/20973
No exact match found.
