Electronic structure of zinc phthalocyanine

Abstract
The electronic structure of zinc phthalocyanine is investigated through MSXα computations and XPS experiments. Reasonable argeement is found between the qualitative structure of the molecular orbital diagram and the XPS spectrum. The visible spectrum is also discussed and the calculation is compared to previous semi-empirical computations. On the other hand, it is shown that a similar calculation on the zinc tetraazaporphyrin — selected as a model molecule — cannot be used to interpret the electronic properties of the phthalocyanine.

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