Nickel(II) complexes with weak-field ligands such as the bromide ion have been found to be octahedral, but

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Nickel(II) complexes with weak-field ligands such as the bromide ion have been found to be octahedral, but nickel(II) complexes with strong-field ligands have been found to be square planar. Explain these findings. (See Exercise 9.13.)


Exercise 9.13

Suggest the form that the orbital energy-level diagram would take for a square planar complex with the ligands in the xy plane, and discuss how the building-up principle applies. The dz2-orbital has a greater electron density in the xy-plane than the dzx- or dyz-orbitals but less than the dxy-orbital.

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Chemical Principles The Quest For Insight

ISBN: 9781464183959

7th Edition

Authors: Peter Atkins, Loretta Jones, Leroy Laverman

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