Values of the Racah parameter B for free gaseous Cr 3+ , Mn 2+ and Ni 2+
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Values of the Racah parameter B for free gaseous Cr3+, Mn2+ and Ni2+ ions are 918, 960 and 1041 cm–1, respectively. For the corresponding hexaaqua ions, values of B are 725, 835 and 940 cm–1. Suggest a reason for the reduction in B on forming each complex ion.
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The Racah parameter B is a term used in crystal field theory to describe the energy difference between the dorbitals of transition metal ions in a cry...View the full answer
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