August 19, 2019, 07:22:29 PM
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Topic: Why does trans-1,2-dichloroethylene doesn't possess an improper rotation (S)?  (Read 229 times)

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Offline AussieKenDoll

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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)?

Offline mjc123

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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.

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