1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: E, Z isomerism

  1. Dec 2, 2008 #1
    Is this the E or Z isomer of 3-isopropyl-2-heptene?

    1538enn.jpg

    My book says Z, but I would think it's E. On the left, there is no doubt which group has higher priority. I would believe that on the right side, the lower group has the higher priority because there is a longer chain of C-atoms.
     
  2. jcsd
  3. Dec 2, 2008 #2
    one of the priorities is wrong. take a look at what is bonded DIRECTLY NEXT TO the first carbon
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook