CH2I?

Moderators: Chem_Mod, Chem_Admin

Sina Rahmani 4A
Posts: 27
Joined: Fri Sep 25, 2015 3:00 am

CH2I?

Postby Sina Rahmani 4A » Fri Mar 04, 2016 5:18 pm

why is CH2I called Iodomethyl? I thought CH3I would be Iodomethyl. Thanks!

Chem_Mod
Posts: 17703
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 404 times

Re: CH2I?

Postby Chem_Mod » Fri Mar 04, 2016 5:35 pm

CH3I is iodomethane, but CH2I invokes that it is a substituent, so it would be an iodomethyl group just like like the difference between methane (CH4) and methyl as a substituent (CH3).

Jasmeet Dhaliwal 3E
Posts: 33
Joined: Fri Sep 25, 2015 3:00 am

Re: CH2I?

Postby Jasmeet Dhaliwal 3E » Fri Mar 04, 2016 5:36 pm

CH2I is called iodomethyl because the whole molecule is a substituent, but within this molecule, iodine is also acting as a substituent; it's a case of a substituent within a substituent. If we were to consider CH3I, carbon already forms four bonds. It would not be able to bond to another atom, and thus it could not be a substituent. CH3I is called iodomethane for this reason.


Return to “*Haloalkanes”

Who is online

Users browsing this forum: No registered users and 1 guest