Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Hartbreaker23

what is the difference between cis-trans and enantiomers

  • one year ago
  • one year ago

  • This Question is Open
  1. Laura<3
    Best Response
    You've already chosen the best response.
    Medals 0

    <http://research.cm.utexas.edu/nbauld/teach/stereo.html> I think this has the info you need. (: Hope that helps.

    • one year ago
  2. aaronq
    Best Response
    You've already chosen the best response.
    Medals 0

    these only happen in molecules with double bonds. To avoid ambiguity when prioritizing a molecule, the prefixes cis- and trans- are used. The difference is in the arrangement of the ligands, cis are where the atoms/groups with greater priority (larger molecular mass) on the same side of the double bond and trans are when they are transverse or opposite. |dw:1358985503376:dw|

    • one year ago
  3. aaronq
    Best Response
    You've already chosen the best response.
    Medals 0

    Enantiomers are molecules with the same amount of atoms which cannot be superimposed on top of each other and so they are mirror images, and so, they are only different in the arrangement of the ligands. Each molecule of a pair of enantiomers also rotates a plane of polarized light by equal but opposite magnitude (angles). Each enantiomers can be prioritized, using the Cahn-Ingold-Prelog system, by decreasing molecular mass. These are labelled R (rectus) when clockwise and S (sinister) counterclockwise. The pictures below assume the molecular mass of A>C>D. |dw:1358985829956:dw|

    • one year ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.