Stereodescriptors of
diastereoisomers with two
chirality elements. When the two
chirality elements are both
R or both
S the
molecular entity is described as having an
l relationship (
l = like), when one
chirality element is
R and the other
S the molecular entity is described as having a
u relationship (
u = unlike). The notation can be extended to molecules with more than two
chirality elements whereby the
l,
u relationships of the
chiral elements are considered in pairs.
Source:
PAC, 1996, 68, 2193
(Basic terminology of stereochemistry (IUPAC Recommendations 1996))
on page 2211
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
