Picture of difference between sec/iso and neo/tert?

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Michael_Phillipi_1I
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Joined: Wed Sep 21, 2016 2:56 pm

Picture of difference between sec/iso and neo/tert?

Postby Michael_Phillipi_1I » Sun Mar 12, 2017 6:42 pm

I have read all the old chem community posts and still cannot seem to figure out the difference. Does anyone know any good instructional videos or pictures to teach me?

Ranica Hortelano 2D
Posts: 9
Joined: Wed Nov 18, 2015 3:00 am

Re: Picture of difference between sec/iso and neo/tert?

Postby Ranica Hortelano 2D » Sun Mar 12, 2017 8:14 pm

To simplify things, just by looking at the structure a molecule with iso- in it sort of has a "Y" branch in its structure, while neo- has a triple branched structure.
If you search images of isopropyl and neopentyl, for example, you can see these structures.

April Z 1K
Posts: 10
Joined: Fri Jul 22, 2016 3:00 am

Re: Picture of difference between sec/iso and neo/tert?

Postby April Z 1K » Sun Mar 12, 2017 10:05 pm

Building on that, the "Y" (iso-)/ "triple branched" (neo-) structures occur at the end of the substituent.
"Sec" and "Tert" refer to how many Carbons in the substituent are connected to the C between it and the rest of the molecule.
The end of this video might help: https://www.youtube.com/watch?v=Hur2jQ-rahk

z_hernandez_loza_3J
Posts: 10
Joined: Wed Nov 18, 2015 3:00 am

Re: Picture of difference between sec/iso and neo/tert?

Postby z_hernandez_loza_3J » Sun Mar 12, 2017 11:18 pm

This website has some pictures:
http://web.chem.ucla.edu/~harding/IGOC/ ... _name.html


There's also this color coded one:
Attachments
tert_butyl_group04.jpg
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