Term: s-cis, s-trans
https://doi.org/10.1351/goldbook.S05508

Definition:
The spatial arrangement of two conjugated double bonds about the intervening single bond is described as s-cis if synperiplanar and s-trans if antiperiplanar. This term should not be applied to other systems such as N-alkyl amides (use E/Z or sp/ap). S05508.png

Related Terms:
1) synperiplanar (http://doi.org/10.1351/goldbook.T06406-1).
2) antiperiplanar (http://doi.org/10.1351/goldbook.T06406-2).
3) trans (http://doi.org/10.1351/goldbook.C01092).
4) amides (http://doi.org/10.1351/goldbook.A00266).

Image: Not defined (https://goldbook.iupac.org/img/inline/S05508.png) 

Source: PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2217 (https://doi.org/10.1351/pac199668122193)

Citation: 's-<i>cis</i>, s-<i>trans</i>' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.S05508

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