Prefixes

[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?

[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.

[EthanPham_1G]

Can anyone provide an example of the naming with these prefixes? I would like to see how it's used.

[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".

[Leyna Dang 2H]

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.