Question

Iupac name of Na3[co(ox)3]

Answer 1

Sodium trioxalate cobalt(III) is required iupac name

Answer 2

Final answer:

IUPAC name of the given compound is sodium tris(oxalato)cobaltate (III).

Given that: We are given $Na_{3}[Co(ox)_{3}]$.

To find: We have to find the IUPAC name.

Explanation:

Rules for naming coordination compounds from the chemical formula:

• First name the positive ion followed by the name of the negative ion.

• For the naming of the coordination sphere, ligands are named first then the central ion. The oxidation number of the central metal atom is written in parentheses just after the name of the central metal using a Roman numeral.

• For anionic ligands, its name ends with the word ‘o’. For cationic ligands, its name ends with ‘ium’. For neutral ligands, there is no end word used.

• Numerical prefixes are used for indicating the number of ligands specified by the prefixes di, tri, tetra, etc. Suppose the ligands are complex and are specified by the prefixes bis, tris, tetrakis, etc., are used followed by the name of the ligand in parentheses.

Here given coordination compound is $Na_{3}[Co(ox)_{3}]$.

• Cation: Sodium ($Na$)

• The anionic part is a coordination sphere: $[Co(ox)_{3}]^{3-}$

• Ligand in coordination sphere: Oxalato ($C_{2}O_{4}^{ 2-}$)

It is a bidentate ligand.

• Central metal atom in coordination sphere: Cobalt ($Co$)

• In this complex cobalt ($Co$) is in a $+3$ oxidation state.

Hence the name of $Na_{3}[Co(ox)_{3}]$ is sodium tris(oxalato)cobaltate (III).

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