Prefix bis, tris, tetrakis, etc.  [ENDORSED]

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Tam To 1B
Posts: 72
Joined: Fri Sep 28, 2018 12:25 am

Prefix bis, tris, tetrakis, etc.

Postby Tam To 1B » Mon Dec 03, 2018 3:12 pm

Hello!

I'm a little confused as to when we name coordination compounds with bis, tris, tetrakis, etc.
What's an example of when this is used instead of di, tri, tetra, etc.?

Thank you!

Chem_Mod
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Re: Prefix bis, tris, tetrakis, etc.  [ENDORSED]

Postby Chem_Mod » Mon Dec 03, 2018 3:15 pm

You would use this if the compound contains a ligand that has bi- tri- etc. in the name to avoid confusion. For example, palladium (0) tetrakis(triphenylphosphine).

Vicky Lu 1L
Posts: 60
Joined: Fri Sep 28, 2018 12:18 am

Re: Prefix bis, tris, tetrakis, etc.

Postby Vicky Lu 1L » Mon Dec 03, 2018 10:54 pm

Di-, tri-, and tetra- should be used for multiple monodentate ligands while bis-, tris-, tetrakis- would be used for for multiple polydentate ligands.

Manya Kidambi 3I
Posts: 31
Joined: Fri Sep 28, 2018 12:24 am

Re: Prefix bis, tris, tetrakis, etc.

Postby Manya Kidambi 3I » Mon Dec 03, 2018 11:23 pm

An example of this - if you had (en)3 (ethylenediamine) for example, it would be tris-ethylenediamine.

danicatran4
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Joined: Fri Sep 28, 2018 12:17 am

Re: Prefix bis, tris, tetrakis, etc.

Postby danicatran4 » Tue Dec 04, 2018 2:18 pm

Vicky Lu 1L wrote:Di-, tri-, and tetra- should be used for multiple monodentate ligands while bis-, tris-, tetrakis- would be used for for multiple polydentate ligands.

What is a monodentate ligand and what's a polydentate ligand? I don't understand the difference.

Ahmet_Dikyurt_3L
Posts: 35
Joined: Fri Sep 28, 2018 12:23 am

Re: Prefix bis, tris, tetrakis, etc.

Postby Ahmet_Dikyurt_3L » Tue Dec 04, 2018 4:32 pm

danicatran4 wrote:
Vicky Lu 1L wrote:Di-, tri-, and tetra- should be used for multiple monodentate ligands while bis-, tris-, tetrakis- would be used for for multiple polydentate ligands.

What is a monodentate ligand and what's a polydentate ligand? I don't understand the difference.

Monodentate ligands have one e- donor to bind with another central atom, but bidentate has 2 e- donor, etc...


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