Crystal structure of a vivianite-type mineral: Mg-rich erythrite, (Co2.16Ni0.24Mg0.60)(AsO4)2 · 8 H2O
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Francesco Capitelli
The crystal structure of erythrite from Bouzaer, south Morocco, was refined through single crystal X-ray diffraction data, within monoclinic space group C2/m, with the following unit cell constants: a = 10.187(1) Å, b = 13.470(1) Å, c = 4.755(1) Å, β = 104.971(2)°, V = 630.3(2) Å3. Transition metal and magnesium cations are randomly distributed over two special positions Me(1) and Me(2), making up single and dimerical octahedral groups, connected by (AsO4) tetrahedra groups, in order to form infinite sheets down b. Such sheets are held together within the three-dimensional framework owing to the presence of an intricate hydrogen bond network. An infrared spectrum was collected in order to achieve information on the HOH bending modes of the erythrite.
© Oldenbourg Wissenschaftsverlag
Articles in the same Issue
- About the variable-counting-time techniques in powder diffraction data: their use in EXPO2004
- Crystal structure of a vivianite-type mineral: Mg-rich erythrite, (Co2.16Ni0.24Mg0.60)(AsO4)2 · 8 H2O
- Temperature-dependent X-ray and neutron diffraction study of BiB3O6
- Structural studies on a stuffed framework high pressure polymorph of CaAl2O4
- New insight into the pectolite – serandite series: a single crystal diffraction study of Na(Ca1.73Mn0.27)[HSi3O9] at 293 and 100 K
- Crystal and molecular structures of 4-substituted 3,4-dihydropyrimidin-2(1H)-ones studied by X-ray and AM1 and B3LYP calculations
- The crystal structure of Pigment Yellow 181 from laboratory powder diffraction data
- BRIZ: a vizualization program for Brillouin zone – Fermi sphere configuration
Articles in the same Issue
- About the variable-counting-time techniques in powder diffraction data: their use in EXPO2004
- Crystal structure of a vivianite-type mineral: Mg-rich erythrite, (Co2.16Ni0.24Mg0.60)(AsO4)2 · 8 H2O
- Temperature-dependent X-ray and neutron diffraction study of BiB3O6
- Structural studies on a stuffed framework high pressure polymorph of CaAl2O4
- New insight into the pectolite – serandite series: a single crystal diffraction study of Na(Ca1.73Mn0.27)[HSi3O9] at 293 and 100 K
- Crystal and molecular structures of 4-substituted 3,4-dihydropyrimidin-2(1H)-ones studied by X-ray and AM1 and B3LYP calculations
- The crystal structure of Pigment Yellow 181 from laboratory powder diffraction data
- BRIZ: a vizualization program for Brillouin zone – Fermi sphere configuration
