Bonding In Metal Carbonyls

%5BFeF_%7B6%7D%5D%5E%7B3-%7D

and

%5BFe(CN)_%7B6%7D%5D%5E%7B30%7D

both, Fe is present as

Fe%5E%7B3%2B%7D

F%5E%7B-%7D

being a weak field ligand, is not capable to pair up these unpaired electrons but

CN%5E%7B-%7D

does this
Hence, is case of

%5BFeF_%7B6%7D%5D%5E%7B3-%7D%3D%5BAr%5D

Number of unpaired electrons

%3D5

Magnetic moment,

%5Cmu_%7B1%7D%3D%5Csqrt%7B5%5Cleft(5%2B2%5Cright)%7D%3D%5Csqrt%7B35%7D

In case of

%5Cleft%5BFe%20%5Cleft(CN%5Cright)_%7B6%7D%5Cright%5D%5E%7B3-%7D%20%3D%5Cleft%5BAr%5Cright%5D

Number of unpaired electron

%3D1

Magnetic moment,

%5Cmu_%7B2%7D%3D%5Csqrt%7B1%5Cleft(1%2B2%5Cright)%7D%3D%5Csqrt%7B3%7D

Ratio of

%5Cmu_%7B1%7D

and

%5Cmu_%7B2%7D%5Ccdot%20%5Cfrac%7B%5Cmu_%7B1%7D%7D%7B%5Cmu_%7B2%7D%7D%3D%5Cfrac%7B%5Csqrt%7B35%7D%7D%7B%5Csqrt%7B3%7D%7D

%3D3.41%3D3

Chapter Questions
1 MCQs