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Prefixes

Posted: Fri Nov 22, 2019 2:42 pm
by Jacob Puchalski 1G
In lecture today Dr. Lavelle mentioned something about the prefixes bis-, tris-, tetrakis-, and pentakis-... can someone explain what he was talking about?

Re: Prefixes

Posted: Fri Nov 22, 2019 6:06 pm
by Montana James 4G
I think he was saying that you use those to name the whole coordination compound if the polydentate ligand attached to a central metal atom already has a greek prefix (di-, tri-, etc) in its name.

Re: Prefixes

Posted: Sat Nov 23, 2019 12:32 am
by EthanPham_1G
Can anyone provide an example of the naming with these prefixes? I would like to see how it's used.

Re: Prefixes

Posted: Sat Nov 23, 2019 10:22 am
by ahuang
Bis- , tris- tetrakis-, pentakis- are used if the ligand has the same prefix as the polydentate so you wouldn't be using the prefix "di " twice to name a compound. The ligand would be named with di and then name the polydentate with "bis".

Re: Prefixes

Posted: Sun Nov 24, 2019 1:15 am
by Leyna Dang 2H
EthanPham_4D wrote:Can anyone provide an example of the naming with these prefixes? I would like to see how it's used.


An example could be the compound ChloroBISethyleneDIaminecobalt(III)Sulfate. Because the ligand has the same prefix as the polydentate (di-), the second prefix, bis- is used.