Question

Write down the IUPAC name for each of the following complexes and indicate the oxidation state, electronic configuration and coordination number. Also give stereochemistry and magnetic moment of the complex:

K₄[Mn(CN)₆]

Answer 1

K₄[Mn(CN)₆]

Potassium hexacyanomanganate(II)

Oxidation state of manganese = +2

Electronic configuration: d⁵⁺: t_2g⁵

Coordination number = 6

Shape: octahedral.

Streochemistry: optically inactive

Magnetic moment, μ = ` sqrt(n(n+2))`

`=sqrt(1(1+2))`

`=sqrt3`

=1.732 BM