Synthesis and characterization of multinuclear manganese-containing tungstosilicates
Inorganic Chemistry, 2014•ACS Publications
The five manganese-containing, Keggin-based tungstosilicates [MnII3 (OH) 3 (H2O) 3 (A-α-
SiW9O34)] 7–(1),[MnIII3 (OH) 3 (H2O) 3 (A-α-SiW9O34)] 4–(2),[MnIII3 (OH) 3 (H2O) 3 (A-β-
SiW9O34)] 4–(3),[MnIII3MnIVO3 (CH3COO) 3 (A-α-SiW9O34)] 6–(4), and [MnIII3MnIVO3
(CH3COO) 3 (A-β-SiW9O34)] 6–(5) were synthesized in aqueous medium by interaction of
[A-α-SiW9O34] 10–or [A-β-SiW9O34H] 9–with either MnCl2 (1) or [MnIII8MnIV4O12
(CH3COO) 16 (H2O) 4](2–5) under carefully adjusted reaction conditions. The obtained …
SiW9O34)] 7–(1),[MnIII3 (OH) 3 (H2O) 3 (A-α-SiW9O34)] 4–(2),[MnIII3 (OH) 3 (H2O) 3 (A-β-
SiW9O34)] 4–(3),[MnIII3MnIVO3 (CH3COO) 3 (A-α-SiW9O34)] 6–(4), and [MnIII3MnIVO3
(CH3COO) 3 (A-β-SiW9O34)] 6–(5) were synthesized in aqueous medium by interaction of
[A-α-SiW9O34] 10–or [A-β-SiW9O34H] 9–with either MnCl2 (1) or [MnIII8MnIV4O12
(CH3COO) 16 (H2O) 4](2–5) under carefully adjusted reaction conditions. The obtained …
The five manganese-containing, Keggin-based tungstosilicates [MnII3(OH)3(H2O)3(A-α-SiW9O34)]7– (1), [MnIII3(OH)3(H2O)3(A-α-SiW9O34)]4– (2), [MnIII3(OH)3(H2O)3(A-β-SiW9O34)]4– (3), [MnIII3MnIVO3(CH3COO)3(A-α-SiW9O34)]6– (4), and [MnIII3MnIVO3(CH3COO)3(A-β-SiW9O34)]6– (5) were synthesized in aqueous medium by interaction of [A-α-SiW9O34]10– or [A-β-SiW9O34H]9– with either MnCl2 (1) or [MnIII8MnIV4O12(CH3COO)16(H2O)4] (2–5) under carefully adjusted reaction conditions. The obtained salts of these polyanions were analyzed in the solid state by single-crystal X-ray diffraction, IR spectroscopy, and thermogravimetric analysis. The salts of polyanions 1, 2, and 4 were further characterized in the solid state by magnetic studies, as well as in solution by electrochemistry.
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