Discussion Ex-1 Q127 to Q164||Colour due to Charge Transfer Classification OF Ligands on the basis OF Bonding Pattern||Synergic Bonding and Stretching Frequency

Classification OF Ligands on the basis OF Bonding Pattern-Classical/Non Classical (π-acid Ligand)/Change in Bond -Order OF Ligand and M-L Bond/Synergic Bonding

Terms used in Complex Salt-Central Metal Ion/Ligand/C.N./Denticity/Coordination Sphere/Ionisation Sphere || Coordination Polyhedra || Charge on Ion || ON OF CMA || Classification OF Complex Salt- Basis OF Charge || Types OF Ligand || Bonding Pattern || Stability

Two important physical evidences supporting the synergic bonding in non-classical complexes are 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 a spring and obeys Hook's law. overline(v)=(1)/(2pic)sqrt((k)/(mu))cm^(-1) where, k=force force constant of the bond which is directly proportional to bonnd strength of CO mu= reduced mass of ligand overline(v) =stretching frequency of the CO bond c=velocity of light Q. In which of the following ligand, sigma -bond order does not change during synergic bonding in their respective complexes: