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

[Michael_Phillipi_1I]

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]

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]

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]

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


There's also this color coded one: