cis-trans isomers

https://doi.org/10.1351/goldbook.C01093
@S05983@ @O04281@ or @C01497@ (or hetero-analogues) which differ in the positions of atoms (or groups) relative to a reference plane: in the cis[email protected]@ the atoms are on the same side, in the @C01092@[email protected]@ they are on opposite sides.
C01093.png
Source:
PAC, 1996, 68, 2193. (Basic terminology of stereochemistry (IUPAC Recommendations 1996)) on page 2204 [Terms] [Paper]
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). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014