Coordination complexes with octahedral or sq. planar geometries can also show cis-trans isomerism. Purification Approaches: Just after synthesis, purification procedures like chromatography are used to isolate the pure cis isomer from any byproducts or other isomers See that cis-trans isomerism is not possible at a carbon-carbon triple bond, as for https://miltoni554ugq7.corpfinwiki.com/user