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 ?

Two important physical evidence support the synergic bonding in non-cl

1.	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 ?
Answer» <P>`[(dien)MO(CO)_(3)]` `[(Et_(3)P)_(3)Mo(CO)_(3)]` `[(F_(3)P)_(3)Mo(CO)_(3)]` `[(Cl_(3)P)_(3)Mo(CO)_(3)]` ANSWER :A