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Dozza B, Rodrigues BM, Tisoco I, de Souza VB, Angnes L, Iglesias BA. Spectroelectrochemistry as a powerful technique for porphyrins/corroles derivatives electro-characterization: Fundamentals and some examples. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Hou Y, Fang Y, Ou Z, Wang L, Xu W, Kadish KM. Electrochemical characterization of β,β′-butanoporphyrins containing sterically hindered meso-2,6-dihalogenophenyl substituents and first-row transition metal ions in nonaqueous media. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424621500450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Six [Formula: see text],[Formula: see text]-butano substituted metalloporphyrins containing sterically hindered meso-dihalogenophenyl substituents and first-row transition metal ions were synthesized and their electrochemical and spectroelectrochemical properties were characterized in nonaqueous media. The investigated compounds have the general formula butano(Y2Ph)4PorM, where Por is a dianion of the porphyrin, M = Mn[Formula: see text]Cl, Fe[Formula: see text]Cl, Co[Formula: see text], Ni[Formula: see text], Cu[Formula: see text] or Zn[Formula: see text]and Y2Ph is a sterically hindered 2,6-F2Ph or 2,6-Cl2Ph group on each of the four meso-positions of the macrocycle. The electrochemistry of each porphyrin was examined in CH2Cl2 or pyridine containing 0.1 M tetra-[Formula: see text]-butylammonium perchlorate. The first one-electron reduction is metal-centered for the manganese(III), iron(III) and cobalt(II) porphyrins to generate the Mn(II), Fe(II) and Co(I) porphyrins, but it is porphyrin ring-centered for the other examined M(II) porphyrins to give porphyrin [Formula: see text]-anion radicals under the given solution conditions. The effect of the [Formula: see text],[Formula: see text]-butano and sterically hindered meso-Y2Ph substituents on redox potentials and electron transfer mechanisms are discussed and compared to what was previously reported for butano-substituted tetraarylporphyrins without hindered meso-substituents.
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Affiliation(s)
- Yueping Hou
- Department of Chemical Engineering, Zhenjiang Vocational College, Zhenjiang, 212003, P. R. China
| | - Yuanyuan Fang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
- Department of Chemistry, University of Houston, Houston, Texas 77204-500, USA
| | - Zhongping Ou
- Department of Chemistry, University of Houston, Houston, Texas 77204-500, USA
| | - Liping Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
- Department of Chemistry, University of Houston, Houston, Texas 77204-500, USA
| | - Weijie Xu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas 77204-500, USA
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Mourzina YG, Offenhäusser A. Electrochemical properties and biomimetic activity of water-soluble meso-substituted Mn(III) porphyrin complexes in the electrocatalytic reduction of hydrogen peroxide. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114159] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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