Atomic number and organic molecule

Moderators: Chem_Mod, Chem_Admin

904477800
Posts: 2
Joined: Mon Jan 26, 2015 2:17 pm

Atomic number and organic molecule

Postby 904477800 » Sat Mar 05, 2016 10:57 pm

When do we know to use the atomic number of the atom when naming the order of an organic molecule?

Henry2E
Posts: 7
Joined: Fri Sep 25, 2015 3:00 am

Re: Atomic number and organic molecule

Postby Henry2E » Sun Mar 06, 2016 2:07 am

When the substituent numbers are the same (counting forward and backward), the first named group (alphabetically) gets the lower number. Otherwise, the numbering isn't affected by the order you list your substituents.

Laura Picazo 1L
Posts: 16
Joined: Fri Sep 25, 2015 3:00 am

Re: Atomic number and organic molecule

Postby Laura Picazo 1L » Sun Mar 06, 2016 7:53 pm

The use of atomic numbers is to determine the priority of the groups bonded to sp2 carbons which would then indicate if the molecule is trans (E) or cis (Z).


Return to “*Alkanes”

Who is online

Users browsing this forum: No registered users and 1 guest