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Determine Z or E from a line structure

Posted: Tue Mar 14, 2017 8:44 pm
by Kevin Le 1L
Generally, how does someone know whether a molecule is Z or E just from the line structure?

Re: Determine Z or E from a line structure

Posted: Wed Mar 15, 2017 1:22 pm
by Myra Kurani 1L
If the 2 constituents with the highest molar mass on each side are on the same side of the line structure, thenn the molecule is a cis molecule and a Z is used to name it. If the 2 constituents with the highest molar mass on each side are on different sides, then it is trans and a E is used to name the molecule.