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Two important physical evidence support ...

Two important physical evidence support the synergic bonding in non-classical complexes-bond lengths and vibrational spectra. Vibrational spectra is based on the fact that the compression and extension of a bond may be analogous to the behaviour of spring and obeys Hooke's law.
`overset(-)v=(1)/(2pic) sqrt((K)/(mu))cm^(-1)` Where, K=force constant of the bond which is directly proportional to bond strngth
`mu="reduced mass of ligand"`
`overset(-)v="stretching frequency of the CO bond"`
`C="velocity of light"`
In which of the following complex, stretching frquency for C-O bond is least as well as bond energy of M-C bond is highest ?

A

`[(dien)Mo(CO)_(3)]`

B

`[(Et_(3)P)_(3)Mo(CO)_(3)]`

C

`[(F_(3)P)_(3)Mo(CO)_(3)]`

D

`[(Cl_(3)P)_(3)Mo(CO)_(3)]`

Text Solution

Verified by Experts

The correct Answer is:
A
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