We may view
these chromium(III) species as octahedral chromium(III) complexes incorporated
into the alumina lattice; d–d transitions at these centres give rise to the colour Fig 5 10: Transition of an electron in
Rationalised 2023-24
135
Coordination Compounds
The crystal field model is successful in explaining the formation,
structures, colour and magnetic properties of coordination compounds
to a large extent