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Cd3B7O13(OH) a new synthetic hydroxy boracite
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Jürgen Glinnemann
Published/Copyright:
September 25, 2009
A new member of the boracite-family of compounds M3B7O13X was synthesized under hydrothermal conditions. This cadmium hydroxy boracite, Cd3B7O13(OH), crystallizes in the trigonal crystal system (space group R3c, No. 161; a = 8.8109(1) Å, c = 21.4572(4) Å) and is isotypic to the iron-rich boracite congolite, (Fe,Mg)3B7O13Cl. The crystal structure has been refined by Rietveld analysis of X-ray powder diffraction data. The boracite structure consists of a three-dimensional framework of vertex-linked BO4-tetrahedra and BO3-triangles, the large interstices of which contain the five-coordinated cation M and the anion X.
Published Online: 2009-9-25
Published in Print: 2000-7-1
© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München
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Articles in the same Issue
- Determination of conduction paths of semiconducting electrons by bond-valence calculations
- On reliability of Rwp in structure modelling
- Self-intersecting three-periodic minimal surfaces forming two-periodic (flat) labyrinths
- Cd3B7O13(OH) a new synthetic hydroxy boracite
- Mixed alkali systems: Dietzels theorem, X-ray structure, hygroscopicity, and 29-Si MAS NMR of NaRbSi2O5 and NaCsSi2O5
- MgAl2O4 synthetic spinel: cation and vacancy distribution as a function of temperature, from in situ neutron powder diffraction
- Structure and spectroscopic properties of hydrogencarbonate containing alumosilicate sodalite and cancrinite
- The bond character of rutile type SiO2, GeO2 and SnO2 investigated by molecular orbital calculation
- X-ray diffraction study of bond character of rutile-type SiO2, GeO2 and SnO2
- Metallradien und Ionenradien
- Crystal structures of [N(C4H9)4][NbCl4OAlCl3] and [N(C3H7)4][NbCl6]
