The electronic absorption spectra of Ni, Zn and Mg hemiporphyrazine derivatives are presented and discussed together with theoretical results obtained by INDO/S computations. The absorption spectra of all the metal derivatives show marked red shifts of the lowest energy absorption bands with respect to those of the metal free hemiporphyrazine. The possible explanation that in metal derivatives low lying excited states with a fully conjugated π electron system are present is supported by theoretical computations.

On the electronic states of macrocycles of the extended porphyrin family and their coordination compounds / Mario, Bossa; Elena, Cervone; Garzillo, Carmine; Andrea, Peluso. - In: JOURNAL OF MOLECULAR STRUCTURE. THEOCHEM. - ISSN 0166-1280. - 390:1-3(1997), pp. 101-107. [10.1016/S0166-1280(96)04764-1]

On the electronic states of macrocycles of the extended porphyrin family and their coordination compounds

GARZILLO, CARMINE;
1997

Abstract

The electronic absorption spectra of Ni, Zn and Mg hemiporphyrazine derivatives are presented and discussed together with theoretical results obtained by INDO/S computations. The absorption spectra of all the metal derivatives show marked red shifts of the lowest energy absorption bands with respect to those of the metal free hemiporphyrazine. The possible explanation that in metal derivatives low lying excited states with a fully conjugated π electron system are present is supported by theoretical computations.
1997
On the electronic states of macrocycles of the extended porphyrin family and their coordination compounds / Mario, Bossa; Elena, Cervone; Garzillo, Carmine; Andrea, Peluso. - In: JOURNAL OF MOLECULAR STRUCTURE. THEOCHEM. - ISSN 0166-1280. - 390:1-3(1997), pp. 101-107. [10.1016/S0166-1280(96)04764-1]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/569899
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