Syntheses and photochemical properties of a tribenzo-naphtho-condensed porphyrazinatozinc complex.

Abstract

The synthesis of a zinc derivative of tribenzonaphthoporphyrazinato (Zn-tri-PcNc) obtained from 6-carboxymethyl-2,3-dicyanonaphthalene and phthalonitrile is described. This new phthalocyanine (Pc) compound was characterized by 1H NMR, elemental analyses, IR and UV-vis. The spectroscopic analysis of this compound show an electronic spectrum in DMSO with characteristic bands in the Soret and ϱ region.

Steady state and time-resolved spectral analysis revealed a fluorescence quantum yield and a fluorescence lifetime of Φf=0.22 and τf = 2.56 ns respectively, in agreement with other Pc derivatives. This compound also shows a triplet lifetime in air satured solutions of 1.06 μs and a transient with the maximum absortion located at 610 nm, 120 nm shifted to the red compared to the triplet observed by other Pc compounds. 

Citation

Pelisson, M.M., Tomé, F.M., Beltrame Jr, M., Simioni, A.R. and Tedesco, A.C., 2003. Syntheses and photochemical properties of a tribenzo-naphtho-condensed porphyrazinatozinc complex. Journal of Porphyrins and Phthalocyanines, 7(09), pp.630-636.

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Categories: Material & Chemical

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