Question
The correct statements about metal carbonyls are
A. The metal-carbon bonds in metals carbonyls possess both σ and π-character.
B. Due to synergic bonding interactions between metals and CO ligand the metal-carbon bond becomes weak.
C. The metal-carbon σ bond is formed by the donation of lone pair of electrons on the carbonyl carbon into a vacant orbital of metal.
D. The metal-carbon π bond is formed by the donation of electrons from filled d-orbital of metal into vacant π* orbital of CO.
Choose the correct answer from the options given below :
Options
Solution
Sol. A) The metal-carbon bonds in metal carbonyls possess both σ and π-character.
B) The metal to ligand bonding creates a synergic effect which strengthens the bond between CO and the metal i.e. metal carbon bond becomes strong.
C) The metal-carbon σ is formed by the donation of lone pair of electrons on the carbonyl carbon into a vacant orbital of metal.
D) The metal-carbon π bond is formed by the donation of electrons from filled d-orbial of metal into vacant π* orbital of CO.
Correct answer are A, C, D
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