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The solid state electronic absorption spectra of a series of planar $d8$ glyoxime complexes have been studied in low temperature rigid glass suspension and through the application of polarized single crystal absorption and reflection techniques. The substances were so chosen that in the solid the central ions undergo an increasingly strong axial perturbation to their “free ion” planar environments. This work has provided detailed information concerning the unusual optical properties exhibited by single crystals of these substances and the spectral changes that occur on the formation of the solid. These studies have also yielded, information on problems related to the free complexes, such as the position of the “d” energy levels and the assignment of the charge transfer bands.