A. V. Oreshkina

Synthesis, thermal analysis, IR spectra, and crystal structure of ammonium 9-molybdomanganate

Ammonium 9-molybdomanganate (NH4)6[MnMo9O32]·6H2O was synthesized and studied by single-crystal and powder X-ray diffraction, thermogravimetric analysis and IR spectroscopy. The crystals are trigonal, space group R32, a = 15.926(2) Å, c = 12.398(2) Å, V = 2723.3(7) Å3, M = 1646.75, Z = 3, ρ(calcd) = 2.98 g/cm3.

Acid nickel oxovanadate [Ni(H2O)6]2[H2V10O28] · 6H2O: Synthesis, IR spectra, thermal analysis, and crystal structure

AbstractAcid nickel oxovanadate, [Ni(H2O)6]2[H2V10O28] · 6H2O (I) was synthesized and studied by X-ray diffraction analysis, thermogravimetry, powder X-ray diffraction, and IR spectroscopy. The crystals are triclinic: space group

Synthesis and study of tetraamminecobalt hydrogen hexamolybdochromate

P\overline 1

Manganese(II) 9-Molybdomanganate(IV), [Mn(H2O)4]3 · [MnMo9O32] · 2H2O: Synthesis, thermal analysis, IR spectra, and crystal structure

, a = 8.869(2) Å, b = 10.869(2) Å, c = 11.116(2) Å, α = 65.14(3)°, β = 74.11(3)°, γ = 70.47(3)°, V = 907.41 Å3, ρ(calcd.) = 2.56 g/cm3, Z = 1.

Synthesis and physicochemical study of diazabicycloundecene hexamolybdochromate [C9H16N2]H3[CrMo6O18(OH)6] · 2H2O

Sodium hexamolybdocobaltate(III) Na3[CoMo6O18(OH)6] · 8H2O (I) and sodium hexamolybdochromate Na3[CrMo6O18(OH)6] · 8H2O (II) were synthesized and studied by mass spectrometry, thermogravimetry, powder X-ray diffraction, and IR spectroscopy. The crystals are monoclinic. For compound a = 10.31 Å, b = 10.31 Å, c = 17.55 Å, β = 100.93°, V = 1834.77 Å3, ρcalcd = 3.04 g/cm3, Z = 3; for compound II: a = 10.33 Å, b = 10.33 Å, c = 17.59 Å, β = 100.98°, V = 1835.09 Å3, ρcalcd = 3.01 g/cm3, Z = 3.

Synthesis and physicochemical study of nonamolybdomanganate with the hexamminecadmium cation

Tetraamminecobalt hydrogen hexamolybdochromate [Co(NH3)4] · H[CrMo6O18(OH)6] · 6H2O (I) was synthesized and studied by mass spectrometry, thermogravimetry, IR spectroscopy, and X-ray diffraction. Crystals of I are monoclinic; a = 16.27 Å, b = 5.61 Å, c = 12.36 Å, β = 119.89°, V = 1100.12 Å3, ρcalcd = 2.29 g/cm3, and Z = 1.

Synthesis and study of hydrogen hexamolybdonickelate and hydrogen hexamolybdozincate with the cobaltammine cation

Tetraamminecobalt hydrogen hexamolybdoferrate [Co(NH3)4] · H[FeMo6O18(OH)6] · 6H2O (I) and tetraamminecobalt hydrogen hexamolybdogallate(III) [Co(NH3)4] · H[GaMo6O18(OH)6] · 6H2O (II) were synthesized and studied by mass spectrometry, thermogravimetry, IR spectroscopy, and X-ray diffraction. Crystals of I and II are monoclinic; a = 16.21 Å, b = 5.43 Å, c = 12.32 Å, β = 119.63°, V = 1092.11 Å3, ρcalcd = 2.21 g/cm3, and Z = 1 for I; a = 16.24 Å, b = 5.59 Å, c = 12.29 Å, β = 119.79°, V = 1064.05 Å3, ρcalcd = 2.15 g/cm3, and Z = 1 for II. Compounds I and II were used as catalysts for soft oxidation of natural gas.

Hexaaquachromium(III) trihydrogen isopolyvanadate [Cr(H2O)6]H3[V10O28] · 2H2O: Synthesis and study

The [Mn(H2O)4]3 · [MnMo9O32] · 2H2O complex was synthesized and studied by X-ray diffraction, thermogravimetry, powder X-ray diffraction, and IR spectroscopy. The crystals are trigonal: space group R32, a = 14.811(2) Å, c = 14.232(2) Å, V = 2703.7(8) Å3, M = 1848.5, Z = 3, ρ(calcd.) = 3.419 g/cm3.