Bonding in Octahedral Complexes

One of the simplest cases of v bonding in octahedral complexes is found in fCoF. Its tr system will be similar to that in Fig. 11.20. The orbitals of the metal... 

In the MO model we have considered metal-ligand bonding in octahedral complexes in order to see the effects of n bonding on the crystal... 

Whether a complex is high- or low-spin depends upon the energy separation of the t2g and eg levels. Nationally, in a fj-bonded octahedral complex, the 12 electrons supplied by the ligands are considered to occupy the aig, and eg orbitals. Occupancy of the and eg levels corresponds to the number of valence electrons of the metal ion, just as in crystal field theory. The molecular orbital model of bonding in octahedral complexes gives much the same results as crystal field theory. It is when we move to complexes with M—L TT-bonding that distinctions between the models emerge. 

Rehearse the arguments which lead to the conclusion that only interactions of symmetry need to be considered when the problem of n bonding in octahedral complexes is studied. 

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