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. 2023 Dec 5:302:123052.
doi: 10.1016/j.saa.2023.123052. Epub 2023 Jun 22.

Phosphorescence of hexachlorosubstituted subphthalocyanine and its pyrazine analogue

Serguei M Arabei  1 , Piotr P Pershukevich  2 , Mikhail V Belkov  2 , Lev L Gladkov  3 , Anastasiya A Tabolich  2 , Konstantin N Solovyov  2 , Ivan A Skvortsov  4 , Pavel A Stuzhin  5
Affiliations

Phosphorescence of hexachlorosubstituted subphthalocyanine and its pyrazine analogue

Serguei M Arabei et al. Spectrochim Acta A Mol Biomol Spectrosc. .

Abstract

Spectral luminescence, kinetic and energetic properties of hexachlorosubphthalocyaninatoboron(III) chloride and its azaanalogue containing fused pyrazine fragments instead of benzene rings were studied at 298 and 77 K. Weak phosphorescence of complexes was detected and characterized in near-infrared region of spectrum, its parameters depend substantially on the presence of methyl iodide due to its external effect of heavy atom in solutions. Quantum yields of photosensitized formation of singlet oxygen were determined by the relative luminescence method.

Keywords: Absorption; Fluorescence and phosphorescence spectra; Luminescence duration; Quantum yield; Singlet oxygen; Substituted subporphyrazines.

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Conflict of interest statement

Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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