A pure inorganic 2-D framework based on paradodecatungstate and Mn<sup>2+</sup> ions: syntheses, structure, and properties

Wu, Lizhou; Yang, Wen; Dong, Xin; Yu, Chengxing; Liu, Bin; Yan, Y. H.; Hu, Huai‐Ming; Xue, Ganglin

doi:10.1080/00958972.2015.1046851

Cited by 5 publications

(3 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A strong absorption at 194 nm was assigned to the p π (O d )→d π* (W) transitions. The hardly noticeable absorption around 250 nm is assigned to p π (O b,c )→d π* (W) charge transfer transition in the tricentric bonds of POMs [43,44] . These results are consistent with reported UV‐vis measurements of ammonium paradodecatungstate [43] .…”

Section: Resultssupporting

confidence: 91%

Structure and Thermal Transformations of Methylammonium Tungstate

Sukmana

Sugiarto

Zhang

et al. 2021

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

Methylammonium paradodecatungstate, (CH3NH3)10[H2W12O42] ⋅ nH2O, was prepared by the reaction of WO3 or H2WO4 in aqueous methylamine, followed by drying. The [H2W12O42]10− anion consists of two HW3O13 groups containing three edge‐sharing WO6 octahedra and two W3O14 groups having two edge‐sharing connections. On drying the produced material at 70 °C, some lattice water was released, but this did not affect the [H2W12O42]10− structure, although there was a decrease in the unit cell volume. By adding water, the loss of lattice water and structural changes were reversed. The existence of paradodecatungstate anions was confirmed by single‐crystal and powder X‐ray diffraction, Fourier transform infrared, Raman, 183W nuclear magnetic resonance, and ultraviolet‐visible spectroscopy. When the methylammonium paradodecatungstate was heated to more than 150 °C, CH3NH2 and H2O were released, and amorphous WO3 was observed as an intermediate product and monoclinic WO3 as the final product. These results reveal the structure of methylammonium tungstate, which was first reported in 1909 and now is used as an important negative staining reagent for virus observation, is methylammonium paradodecatungstate.

show abstract

Section: Resultssupporting

confidence: 91%

Structure and Thermal Transformations of Methylammonium Tungstate

Sukmana

Sugiarto

Zhang

et al. 2021

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

show abstract

“…The other two sodium ions are six-coordinated to H 2 O molecules. The structure of 1 as presented above is, at first sight, very similar to that described by Ganglin Xue et al [73] but there is a major difference between the two compounds. In the present case, the junction between the 1-D chains…”

Section: Synthesis and Structuresupporting

confidence: 77%

“…As stated in the introduction and in the experimental section, compound 1 was obtained when attempting to prepare the sandwich-type complex [ , that are, in a few cases, linked together by one or more "d" metal ions to form extended networks [67][68][69][70][71][72][73]. Similarly, other attempts were done with Al 3+ , Co 2+ or Fe 3+ instead of Zn 2+ but we failed to obtained the corresponding analogues of the expected compounds, [Mn 2 (MnOH 2 ) 2 (MW 9 O 34 ) 2 ] n− , with M = Al, Co or Fe.…”

Section: Synthesis and Structurementioning

confidence: 99%

Synthesis, Crystal Structure, Electrochemistry and Electro-Catalytic Properties of the Manganese-Containing Polyoxotungstate, [(Mn(H2O)3)2(H2W12O42)]6−

et al. 2019

View full text Add to dashboard Cite

We present the synthesis and structural characterization of the manganese-containing polyoxotungstate, [(Mn(H2O)3)2(H2W12O42)]6− (1), obtained by reaction of MnCl2 with six equivalents of Na2WO4 in the presence of Zn(CH3COO)2 in acetate medium (pH 4.7). This has been assessed by various techniques (FTIR, TGA, UV-Visible, XPS, elemental analysis, single crystal X-ray and electrochemistry). Single-crystal X-ray analyses showed that, in the solid state, 1 forms a 2-D network in which [H2W12O42]10− fragments are linked in pairs via Mn2+ ions, leading to linear chains of the form [(Mn(H2O)3)2(H2W12O42)]n6n−. The connection between chains occurs also via Mn2+ ions which bind [H2W12O42]10− fragments belonging to two adjacent chains, forming an infinite 2-D network. A complete electrochemical study was done in aqueous solution where 1 is stable in the pH range 1 to 6. This complex undergoes multiple electron-transfer processes that lead to the electro-generation of manganese high oxidation state species that catalyse water electro-oxidation. 1 is also effective in the electro-catalytic reduction of nitrite and dioxygen.

show abstract

A rational assembly of paradodecatungstate anions from clusters to morphology-controlled nanomaterials

Jassal

Mudsainiyan

Shankar

2021

Mater. Chem. Front.

View full text Add to dashboard Cite

show abstract

A pure inorganic 2-D framework based on paradodecatungstate and Mn²⁺ ions: syntheses, structure, and properties

Cited by 5 publications

References 35 publications

Structure and Thermal Transformations of Methylammonium Tungstate

Structure and Thermal Transformations of Methylammonium Tungstate

Synthesis, Crystal Structure, Electrochemistry and Electro-Catalytic Properties of the Manganese-Containing Polyoxotungstate, [(Mn(H2O)3)2(H2W12O42)]6−

A rational assembly of paradodecatungstate anions from clusters to morphology-controlled nanomaterials

Contact Info

Product

Resources

About

A pure inorganic 2-D framework based on paradodecatungstate and Mn2+ ions: syntheses, structure, and properties

Cited by 5 publications

References 35 publications

Structure and Thermal Transformations of Methylammonium Tungstate

Structure and Thermal Transformations of Methylammonium Tungstate

Synthesis, Crystal Structure, Electrochemistry and Electro-Catalytic Properties of the Manganese-Containing Polyoxotungstate, [(Mn(H2O)3)2(H2W12O42)]6−

A rational assembly of paradodecatungstate anions from clusters to morphology-controlled nanomaterials

Contact Info

Product

Resources

About

A pure inorganic 2-D framework based on paradodecatungstate and Mn²⁺ ions: syntheses, structure, and properties