April 17, 2021, 09:44:35 PM
Forum Rules: Read This Before Posting


Topic: Stereogenic Center Criteria (Are E-Z Stereoisomers Considered Distinct Groups?)  (Read 231 times)

0 Members and 1 Guest are viewing this topic.

Offline RH111

  • Regular Member
  • ***
  • Posts: 11
  • Mole Snacks: +0/-0
Hi,

From what I understand, for a Carbon atom to be a stereogenic center, it needs to be bonded to 4 distinct groups.  I was wondering whether two stereoisomers (of the E and Z configurations) would be considered distinct groups and make the compound chiral; or if they are considered identical and thus make the compound achiral.

Thanks!

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 26420
  • Mole Snacks: +1719/-402
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
I was wondering whether two stereoisomers (of the E and Z configurations) would be considered distinct

Yes.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Offline RH111

  • Regular Member
  • ***
  • Posts: 11
  • Mole Snacks: +0/-0
Thanks for your response. In that case how would I assign priority to those groups (the E-Z stereoisomers) to determine the R-S configuration of the molecule?

~RH111

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 26420
  • Mole Snacks: +1719/-402
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Sponsored Links