How to identify whether a compound will undergo d-d transitions or not? Please explain with examples!
How to identify whether a compound will undergo d-d transitions or not? Please explain with examples!
d-d transition means a shifting of electron/s between the lower energy d orbital to a higher energy d orbital by absorption of energy and vice versa.
In complex compounds the e.g an octahedral complex the electronic transition occurs from a t2g orbital to an Eg orbital And generally this transition involves energy in the visible region and thus Colors are observed. So generally complex compounds are coloured due to transition between the lower energy d orbital (t2g orbitals: dxy, dyz and dzx) and higher energy d orbital (Eg orbitals: dx2-y2 and dz2).
The accurate example of d- d transition involves k3[Fe(CN)6] having paramagnetic and coloured nature because of the presence of an unpaired electron showing d-d transition.
In centrosymmetric complexes, d-d transitions are forbidden by the Laporte rule. ... Through such asymmetric vibrations, transitions that would theoretically be forbidden, such as a d-d transition, are weakly allowed. An example occurs in octahedral complexes such as in complexes of manganese(II).
d-d transition means a shifting of electron/s between the lower energy d orbital to a higher energy d orbital by absorption of energy and vice versa.
In complex compounds the e.g an octahedral complex the electronic transition occurs from a t2g orbital to an Eg orbital And generally this transition involves energy in the visible region and thus Colors are observed. So generally complex compounds are coloured due to transition between the lower energy d orbital (t2g orbitals: dxy, dyz and dzx) and higher energy d orbital (Eg orbitals: dx2-y2 and dz2).
The accurate example of d- d transition involves k3[Fe(CN)6] having paramagnetic and coloured nature because of the presence of an unpaired electron showing d-d transition.
In centrosymmetric complexes, d-d transitions are forbidden by the Laporte rule. ... Through such asymmetric vibrations, transitions that would theoretically be forbidden, such as a d-d transition, are weakly allowed. An example occurs in octahedral complexes such as in complexes of manganese(II).
