IUPAC Name of [Fe(H2O)4(c2o4)2]SO4

Complex Ion Name

The complex ion in this compound is [Fe(H2O)4(c2o4)2]2+. It consists of a central iron ion (Fe2+) that is coordinated to four water molecules (H2O) and two oxalate ions (c2o4) in a bidentate manner.

Counter Ion Name

The counter ion in this compound is sulfate (SO4)2-. It balances the charge of the complex ion and forms an ionic compound.

IUPAC Name

The IUPAC name of this compound is:

Iron(II) tetraaquadi-μ-oxalato-bis(oxalato) ferrate(II) sulfate

Explanation:
- The central iron ion is named as iron(II) since it has a +2 oxidation state.
- The four water molecules coordinated to iron are named as tetraaqua.
- The two oxalate ions coordinated to iron are named as di-μ-oxalato-bis(oxalato) since they are bidentate and bridging between two iron ions.
- The sulfate ion is named as sulfate.
- The name of the complex ion is combined with the name of the counter ion to form the complete name of the compound.

Summary

The compound [Fe(H2O)4(c2o4)2]SO4 has a complex ion [Fe(H2O)4(c2o4)2]2+ and a counter ion SO42-. The IUPAC name of the compound is Iron(II) tetraaquadi-μ-oxalato-bis(oxalato) ferrate(II) sulfate.