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Cis- vs. Trans-

Posted: Tue Nov 14, 2017 1:34 pm
by Isabelle Bautista 3H
Does this refer to the orientation of the dipoles around the molecule?

Re: Cis- vs. Trans-

Posted: Tue Nov 14, 2017 2:35 pm
by Salman Azfar 1K
It implies what side of the double bond something is located on. Two things are on the same side for cis and opposite for trans. It doesn't directly define where the dipoles are but the location of the atoms around the double bond affects the dipole directions so it is quite important.

Re: Cis- vs. Trans-

Posted: Thu Nov 16, 2017 4:35 pm
by Jessica_Singh_1J
These terms don't directly refer to the orientation of dipoles around the molecule. Cis- and trans- are used to describe geometric isomerism (isomers are molecules with the same molecular formula but different arrangements of individual atoms in space). If two groups are located on the same side of the molecule, we use cis-; if they are located on opposite sides, we use trans-.

Re: Cis- vs. Trans-

Posted: Fri Nov 17, 2017 1:34 am
by Jana Sun 1I
However keep in mind that due to the differences in the shapes of cis- and trans- molecules (described by previous comments), cis molecules are often polar while trans molecules are often nonpolar!

Re: Cis- vs. Trans-

Posted: Fri Nov 17, 2017 11:07 pm
by aaron tang 2K
Cis and Trans represents the geometric isomerism. If 2 groups are on the same side, then it is a cis and if the other groups are on opposite side then it is a trans