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Question

Chemistry Question on coordination compounds

Which of the following carbonyls will have the strongest C-O bond ?

A

Fe(CO)5{Fe(CO)_5 }

B

Mn(CO)6+{ Mn(CO)_6^+}

C

Cr(CO)6{ Cr(CO)_6}

D

V(CO)6−{V(CO)^{-}_6 }

Answer

Mn(CO)6+{ Mn(CO)_6^+}

Explanation

Solution

Due to positive oxidation state of Mn back donation in p* ABMO of CO is minimum therefore C-O bond is strongest.