Question

[co(en)2Cl2]No3 iupas name

Answer 1

Answer:

dichlorobisethylenediamminecobalt(iii)nitrate

Explanation:

following inorganic nomenclature rules.

Answer 2

Final answer: $Dichlorobis(ethane-1,2-diamine)cobalt(III) nitrate$

Given that: We are given $[Co(en)_{2}Cl_{2}]NO_{3}$

To find: We have to find IUPAC name of $[Co(en)_{2}Cl_{2}]NO_{3}$

Explanation:

The guidelines used for naming of the coordination compounds are as follows:

• Name the ligand first followed by metal in the complex ions.
• If there is multiple ligands are present in the complex, then then naming start with neutral ligands followed by negative ligands then positive ligands. If there is same charge ligands, naming will be according to alphabetical order.
• Use the prefix like mono, di, tri etc. to indicate number of individual ligands while in case of polydentate ligands being placed in parenthesis, we use the prefix like bis, tris, tetrakis etc.
• For naming anionic ligands, replace the term ‘ate’ with ‘ato’ and ‘ide’ with ‘ido’.
• After naming all the ligands, name the central metal ion or atom followed by its oxidation number using Roman numeral in parenthesis.
• The name of the anion complex is ends with the word ion.

By using above rules, we can name $[Co(en)_{2}Cl_{2}]NO_{3}$ :

$Dichlorobis(ethane-1,2-diamine)cobalt(III) nitrate$

• In this complex,  2 $Cl^{-}$ ligand which is unidentate ligand and 2 $en$ short form of $ethane-1,2-diamine$ ligand which is bidentate ligand.
• The oxidation state of central metal cobalt in this complex will be +3. Oxidation state of cobalt is written in Roman letters within the brackets.
• Nitrate ion is present outside of coordination sphere $[Co(en)_{2}Cl_{2}]$, so it will be named after naming the complex.

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