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In Fe(CO)_{5}, the Fe-C   bond possesses

Option: 1

   \pi \;- character only


Option: 2

both \; \sigma and \pi \; characters


Option: 3

ionic character


Option: 4

\; \sigma- character only.


Answers (1)

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As we have learned

Strong Field Ligand -

These are the ligands which pair the electron in inner d-orbital and makes required d-orbitals empty/available. 

- wherein

For example: CO, CN etc

 

 In  Fe (CO)_5 , Fe -C  bond posses both \sigma \: \: \: and \: \: \: \pi  characters as CO is a strong field ligand it has tendency of  \pi  back bonding , which gives the bond Fe - C both  \sigma \: \: \: and \: \: \: \pi  characters

 

Posted by

Deependra Verma

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