Find the number of ligands (s) which are monodentate, neutral as well as a non-classical ligand.
[ CO, CN−, S2O2−3, PF3 ]
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Solution
The number of ligand(s) which are monodentate, neutral as well as non-classical ligand is 2. These include CO, and PF3 . They are pi bonding ligands. They form complexes only with transition metals by simultaneous donor and acceptor interaction between occupied and free orbitals of the pi ligand and the d orbitals of the metal.