Naming with bis-

Moderators: Chem_Mod, Chem_Admin

Hailey Boehm 2H
Posts: 71
Joined: Fri Sep 28, 2018 12:24 am

Naming with bis-

Postby Hailey Boehm 2H » Thu Dec 06, 2018 8:46 pm

In my discussion we discussed the name of the compound [Pt(NH2CH2CH2NH2)2Cl2]Cl2. The name is dichlorobisethylenediamineplatinum(IV)chloride. why exactly is the prefix bis- needed? is it because of the name of the ligand ethylene diamine also has a prefix in it?

Sydney Stump
Posts: 30
Joined: Fri Sep 28, 2018 12:17 am

Re: Naming with bis-

Postby Sydney Stump » Thu Dec 06, 2018 8:54 pm

Yes, it is because en includes the prefix di- already.

Ramsha Dis1B
Posts: 32
Joined: Fri Sep 28, 2018 12:19 am

Re: Naming with bis-

Postby Ramsha Dis1B » Thu Dec 06, 2018 9:49 pm

Yeah, you would write bis- because there is already a di- in the ligand itself, just like Sydney said. My TA also extended on the reason we have to do that. Writing bis- allows you to know that there is two ethylenediamines rather than two ethylens with two amines because that is not the case since for one ethylene there are two amines.

Carissa Young 1K
Posts: 65
Joined: Fri Sep 28, 2018 12:17 am

Re: Naming with bis-

Postby Carissa Young 1K » Thu Dec 06, 2018 9:53 pm

what were the other names we had to remember besides bis when the other prefixes are already used in the name?

Jeannine 1I
Posts: 73
Joined: Fri Sep 28, 2018 12:27 am

Re: Naming with bis-

Postby Jeannine 1I » Thu Dec 06, 2018 9:57 pm

Carissa Young 1C wrote:what were the other names we had to remember besides bis when the other prefixes are already used in the name?

We need to remember to use:

bis- instead of di-
tris- instead of tri-
tetrakis- instead of tetra-
pentakis- instead of penta-

We use those names when the ligand already has di-, tri-, or tetra- in its formula, or if the ligand is a polydentate ligand.

Lydia Luong 4L
Posts: 59
Joined: Fri Sep 28, 2018 12:24 am

Re: Naming with bis-

Postby Lydia Luong 4L » Thu Dec 06, 2018 10:28 pm

Yes, you need to write bis- because the ligand includes a di-.


Return to “Naming”

Who is online

Users browsing this forum: No registered users and 1 guest