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: Frontier Orbital Theory

  1. Apr 24, 2007 #1


    User Avatar

    While studying the structure of 1,3 butadiene and considering frontier orbital theory, I came across a graph of the HOMO to LUMO orbitals.


    Basically put, when I draw out all the res structures for 1,3 butadiene, i can make 4 of them (i know that 2 of them are very unstable and 1 of them is very very very unstable).

    Is there a similarity here or is it just dumb luck that there are 4 of each (4 res structures and 4 alignments in the homo/lumo chart.)

  2. jcsd
  3. Apr 24, 2007 #2


    User Avatar

    Also here are some more charts to look at.



  4. Apr 24, 2007 #3


    User Avatar

    and the last one (limit of 3 pics per post)

  5. Oct 12, 2008 #4
    u must have 4 of theme, butadiene formation required interaction of 4 atomic orbitals so sure u must have 4 molecular orbitals that u draw !!!!!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook