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Manganese Sulfanyl Porphyrazine-MWCNT Nanohybrid Electrode Material as a Catalyst for HO and Glucose Biosensors.
Sensors (Basel)
September 2024
Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Berdychowo 4, 60-965 Poznan, Poland.
Article Synopsis
- The demetallation and remetallation of sulfanyl magnesium(II) porphyrazine with manganese(II) salts produce a novel manganese(III) derivative (Pz3), which was characterized using various spectroscopy techniques.
- Electrochemical testing showed that Pz3 has notable activity, especially when combined with multiwalled carbon nanotubes (MWCNTs), leading to improved detection of hydrogen peroxide (HO) compared to other electrode configurations.
- A biosensing platform for glucose detection was developed by integrating a glucose oxidase enzyme with the modified electrode, resulting in effective glucose readings in a linear range from 0.2 to 3.7 mM.
Manganese(III) Triacetate-Mediated Cross Coupling of Organoboron Compounds with Trichloroethylene (TCE): Synthesis of 1,1-Dichloroalkenes.
J Org Chem
October 2024
College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China.
Article Synopsis
- An efficient method for creating 1,1-dichloroalkenes from organoboron compounds is reported, using manganese(III) triacetate and trichloroethylene (TCE) as key reagents.
- * The reaction is versatile, accommodating different organoboron compounds and functional groups, yielding moderate to good results.
- * Interestingly, the process is also successful with manganese(II) acetate and can be adapted to synthesize other chloroalkenes, including 1,1,2-trichloroalkenes.
Effect of Precursors on the Electrochemical Properties of Mixed RuOx/MnOx Electrodes Prepared by Thermal Decomposition.
Materials (Basel)
October 2022
Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy.
Growing thin layers of mixed-metal oxides on titanium supports allows for the preparation of versatile electrodes that can be used in many applications. In this work, electrodes coated with thin films of ruthenium (RuOx) and manganese oxide (MnOx) were fabricated via thermal decomposition of a precursor solution deposited on a titanium substrate by spin coating. In particular, we combined different Ru and Mn precursors, either organic or inorganic, and investigated their influence on the morphology and electrochemical properties of the materials.
View Article and Find Full Text PDFThe Full d-d Redox Series of Mononuclear Manganese Complexes: Geometries and Electronic Structures of [Mn(dgpy)].
Inorg Chem
September 2022
Department of Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, 55128 Mainz, Germany.
Although manganese ions exhibit a rich redox chemistry, redox processes are often accompanied by structural reorganization and a high propensity for ligand substitution, so that no complete structurally characterized manganese(II,III,IV) complex series without significant ligand sphere reorganization akin to the manganese(II,III,IV) oxides exists. We present here the series of pseudo-octahedral homoleptic manganese complexes [Mn(dgpy)] ( = 2-4) with the adaptable tridentate push-pull ligand 2,6-diguanidylpyridine (dgpy). Mn-N bond lengths and N-Mn-N bond angles change characteristically from = 2 to = 4, while the overall [MnN] coordination sphere is preserved.
View Article and Find Full Text PDFImpact of counter anions on spin-state switching of manganese(III) complexes containing an azobenzene ligand.
Dalton Trans
May 2022
Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
Four mononuclear manganese(III) complexes coordinated with photo-active hexadentate azobenzene ligands, [Mn(5azo-sal-323)](X) (X = Cl, 1; X = BF, 2; X = ClO, 3; X = PF, 4), were prepared. The impact of various counter anions on the stabilization and switching of the spin state of the manganese(III) center was explored through detailed magneto-structural investigation using variable temperature single-crystal X-ray diffraction, magnetic, spectroscopic, and spectroelectrochemical studies, along with theoretical calculations. All four complexes consisted of an isostructural monocationic distorted octahedral MnNO coordination environment offered by the hexadentate ligand and Cl, BF, ClO, and PF as counter anions respectively.
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