Write the hybridization and magnetic character of the following complexes:

(i)     \left [ Fe\left ( H_{2}O \right )_{6} \right ]^{2+}

(ii)     \left [ Fe\left (CO \right )_{5} \right ]

(Atomic number of Fe = 26)

 

 

 

 
 
 
 
 

Answers (1)

(i) \left [ Fe\left ( H_{2}O \right )_{6} \right ]^{2+}

_{26}Fe=4s^{2}3d^{6}

Fe^{2+}=4s^{0}3d^{6}

Hybrization \rightarrow sp^{3}d^{2}

Paramagnetic, as it contains an unpaired electrons.

(ii) \left [ Fe\left (CO \right )_{5} \right ]

_{26}Fe=4s^{2}3d^{6}

Hybridiastion \rightarrow dsp^{3}

Diamagnetic, as it does not contain any unpaired electron.

 

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