TM naming

Moderators: Chem_Mod, Chem_Admin

Hector Acosta Discussion 1H
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

TM naming

Postby Hector Acosta Discussion 1H » Sat Nov 18, 2017 12:55 am

Can someone please explain in the most simple form possible on how we name these compounds.

Scott Chin_1E
Posts: 55
Joined: Sat Jul 22, 2017 3:00 am

Re: TM naming

Postby Scott Chin_1E » Sat Nov 18, 2017 11:38 am

(Greek prefix) + Ligand names in alphabetical order (that are bonded to the TM) + TM cation + (Roman Numeral) + (if there are anions within the coordination complex we will add a -o) + (if there are anions bonded to the coordination complex) the anion name + (Greek Prefix) + Hydrate.

For example:

The ligand name that is bonded to the TM is called Ammine. Since there are 5 Ammines bonded to the Cobalt (TM) we would use the Greek prefix "Penta-". Next we see that there is a Chlorine bonded to the Coordination Complex so we will drop the -ine from Chlorine and add "-o" to make "Chloro-". This name would become "Chlorocobalt". From the charges of each compound, we can deduce that the oxidation number of Cobalt is 2+ so we will use the Roman Numerals (II). Finally, since there is a Chlorine atom and 2 water atoms bonded, to the complex, we will use the name "Chloride Dihydrate".

The resulting name is:
Pentaammine Chlorocobalt (II) Chloride Dihydrate

Kaelie Blanes-Ronda 2L
Posts: 42
Joined: Fri Sep 29, 2017 7:07 am
Been upvoted: 1 time

Re: TM naming

Postby Kaelie Blanes-Ronda 2L » Sun Nov 19, 2017 4:17 pm

There are two naming conventions: Ex. the older naming convention would use "cyano" and the newest IUPAC naming rules use "cyanido." You should be familiar with both and both will be acceptable on any exams.

Return to “Naming”

Who is online

Users browsing this forum: No registered users and 1 guest