Chemical Forums
Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: AussieKenDoll on April 05, 2019, 01:23:51 AM
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Why does trans-1,2-dichloroethylene doesn't possess an improper rotation (S) as there are C2 and sigma h(Horizontal reflection)?
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Where C2 and σh symmetry elements exist, their combination is equivalent to i (inversion through a centre of symmetry). S2 ≡ i.