Write down the IUPAC name for the following complex and indicate … - Vidyadip

Question

Write down the $\text{IUPAC}$ name for the following complex and indicate the oxidation state, electronic configuration and coordination number. Also give stereochemistry and magnetic moment of the complex:
$\ce{K[Cr(H_2O)_2(C_2O_4)_2].3H_2O}$

✓

Answer

$\ce{K[Cr(H_2O)_2(C_2O_4)_2].3H_2O}$
Potassium diaquadioxalatochromate $(III)$ trihydrate.
Oxidation state of chromium $= 3$
Electronic configuration:$ 3d^3 : t_{2g}^3$
Coordination number $= 6$
Shape: octahedral
Stereochemistry:

Magnetic moment, µ = $\sqrt{\text{n}(\text{n}+2)}$
$=\sqrt{3(3+2)}$
$=\sqrt{15}$
$=\text{~}4\text{BM}$

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