[Hexaamminecobalt(III)] Dichloride Permanganate—Structural Features and Heat-Induced Transformations into (CoII,MnII)(CoIII,MnIII)2O4 Spinels
نویسندگان
چکیده
We synthesized and characterized (IR, Raman, UV, SXRD) hexaamminecobalt(III) dichloride permanganate, [Co(NH3)6]Cl2(MnO4) (compound 1) as the precursor of Co–Mn–spinel composites with atomic ratios Co:Mn = 1:1 1:3. The 3D?hydrogen bond network includes N–HO–Mn N–HCl interactions responsible for solid-phase redox reactions between permanganate anions ammonia ligands. temperature-limited thermal decomposition compound 1 under temperature boiling toluene (110 ?C) resulted in formation (NH4)4Co2Mn6O12. which contains a todorokite-like manganese oxide (MnII4MnIII2O1210?). heat treatment products compounds [Co(NH3)5Cl](MnO4)2 (2) previously at 500 ?C were cubic tetragonal spinel Co1.5Mn1.5O4 CoMn2O4 composition, respectively. heating product 2 that formed refluxing (a mixture an ratio 1:2) after aqueous leaching ((NH4)4Co2Mn6O12, 1:3 both cases) Co0.75Mn2.25O4 spinels. prepared from during catalyzes degradation Congo red UV light. rate dye was found to be nine times faster than presence 2. intermediate N2 115 54 red, is great deal same phase N2.
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ژورنال
عنوان ژورنال: Inorganics (Basel)
سال: 2022
ISSN: ['2304-6740']
DOI: https://doi.org/10.3390/inorganics10120252