Name: CFT: Theory of Coordination Compounds
Uploaded: 2019-07-19
Duration: 6 min 25 s
Description: There are various theories to explain bonding in coordination compounds. Crystal field theory is one of those theories. It explains many properties.

Question

Write down the IUPAC name of $[Cu (en)_{2}] {SO}_{4}$ .

Accepted Answer

$[Cu (en)_{2}] {SO}_{4}$

Here, ethane− $1, 2$ −diamine is a neutral ligand.

Let oxidation state of $Cu$ be $x$ .

$\Rightarrow x + 2 (0) = + 2 \Rightarrow x = 2$

Following things are to be kept in mind while writing IUPAC names of complex compound.

1) Firstly, we write a cationic part then the anionic part of the complex.

2) While naming the complex ion, ligands are written first in alphabetical order mentioning their respective numbers first using prefixes like mono, di, tri etc. and then their name. When the names of the ligands include a numerical prefix, then the terms, bis, tris, tetrakis are used. Here, we have a total $2$ of ligand $en$ , which is named ethane- $1, 2$ -diamine.

3) If the complex ion is positively charged, metal is named as it is. Whereas, if the complex ion is negatively charged, metal is named with a suffix 'ate'. Here we have a positively charged complex ion.

4) Oxidation state of the metal is indicated by Roman numeral in parentheses.

So, IUPAC name will be bis(ethane− $1, 2$ −diamine)copper (II) sulphate.

Write down the IUPAC name of $[Cu (en)_{2}] {SO}_{4}$ .

Important Questions on Coordination Compounds

Learn and Prepare for any exam you want !

Write down the IUPAC name of Cu(en)2SO4.

Important Questions on Coordination Compounds

Learn and Prepare for any exam you want !

Write down the IUPAC name of $[Cu (en)_{2}] {SO}_{4}$ .