cis-trans isomerism

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cis-trans isomerism

[′si¦stranz ī′säm·ə‚riz·əm]
(organic chemistry)
A type of geometrical isomerism found in alkenic systems in which it is possible for each of the doubly bonded carbons to carry two different atoms or groups; two similar atoms or groups may be on the same side (cis) or on opposite sides (trans) of a plane bisecting the alkenic carbons and perpendicular to the plane of the alkenic system.
References in periodicals archive ?
Kogerman synthesized dimethyl butadiene and proved that the reason for the contradicting results was the existence of the hitherto unknown cis-trans isomers.
Clinical results in CLA weight loss studies are equivocal, which may be a function of intensity of exercise as well as the amount of active cis-trans isomers being consumed per day.
The addition of 9-HODE, 13-HODE, 9-HpDHE, and 13-HpDHE calibrators confirmed the identity of these peaks as the cis-trans isomers of these oxidation products.