Comparison of Ni2+ square planar and tetrahedral complexes
نویسنده
چکیده
When Ni2+ is surrounded by a ligand field due to cyanide ligands, a square planar geometry results. However, when Ni2+ forms a complex with chloride a tetrahedral geometry results. To determine the cause of this difference, hybrization, bonding, the molecular orbital picture, and symmetry will be considered using several techniques. Because the spacings between energy levels depend on factors such as the geometry of the complex, the nature of the ligands, and the oxidation state of the central metal atom, electronic spectra of complexes can give important information about bonding and structure. EPR would be equally as useful to determine structure due to the fact that tetrahedral geometry is paramagnetic and square planar geometry is diamagnetic.
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