Synthesis of New Cobalt(III) Meso-Porphyrin Complex, Photochemical, X-ray Diffraction, and Electrical Properties for Photovoltaic Cells

Soumaya Nasri; Mouhieddinne Guergueb; Jihed Brahmi; Youssef O Al-Ghamdi; Florian Molton; Frédérique Loiseau; Ilona Turowska-Tyrk; Habib Nasri

doi:10.3390/molecules27248866

Synthesis of New Cobalt(III) Meso-Porphyrin Complex, Photochemical, X-ray Diffraction, and Electrical Properties for Photovoltaic Cells

Molecules. 2022 Dec 13;27(24):8866. doi: 10.3390/molecules27248866.

Authors

Soumaya Nasri^{1

2}, Mouhieddinne Guergueb², Jihed Brahmi², Youssef O Al-Ghamdi¹, Florian Molton³, Frédérique Loiseau³, Ilona Turowska-Tyrk⁴, Habib Nasri²

Affiliations

¹ Department of Chemistry, College of Science Al-Zulfi, Majmaah University, Majmaah 11952, Saudi Arabia.
² Laboratory of Physical Chemistry of Materials, Faculty of Sciences of Monastir, University of Monastir, Avenue de L'environnement, Monastir 5019, Tunisia.
³ Département de Chimie Moléculaire, 301 rue de la Chimie, Université Grenoble Alpes, CS 40700, CEDEX 9, 38058 Grenoble, France.
⁴ Faculty of Chemistry, Wrocław University of Science and Technology, 27 Wybrzeże Wyspiańskiego, 50-370 Wrocław, Poland.

Abstract

The present work describes the preparation and characterization of a new cobalt(III) porphyrin coordination compound named (chlorido)(nicotinoylchloride)[meso-tetra(para-chlorophenyl)porphyrinato]cobalt(III) dichloromethane monosolvate with the formula [Co^III(TClPP)Cl(NTC)]·CH₂Cl₂ (4). The single-crystal X-ray molecular structure of 4 shows very important ruffling and waving distortions of the porphyrin macrocycle. The Soret and Q absorption bands of 4 are very red-shifted as a consequence of the very distorted porphyrin core. This coordination compound was also studied by fluorescence and cyclic voltammetry. The efficiency of our four porphyrinic compounds-the H₂TClPP (1) free-base porphyrin, the [Co^II(TClPP)] (2) and [Co^III(TClPP)Cl] (3) starting materials, and the new Co(III) metalloporphyrin [Co^III(TClPP)Cl(NTC)]·CH₂Cl₂ (4)-as catalysts in the photochemical degradation was tested on malachite green (MG) dye. The current voltage of complexes 3 and 4 was also studied. Electrical parameters, including the saturation current density (J_s) and barrier height (ϕ_b), were measured.

Keywords: X-ray molecular structure; cobalt porphyrin; dye degradation; electrical parameters; photophysical properties; synthesis.

Grants and funding

This research received no external funding.