Article
Licensed
Unlicensed
Requires Authentication
Verfeinerung der Kristallstruktur von Holmquistit vom Brandrücken/Weinebene, Koralpe, Österreich
Published/Copyright:
August 25, 2010
Abstract
The crystal structure of holmquistite Na0.04Ca0.02 Li1.91-Mg1.98Fe1.05Mn0.03Ti0.01Al1.93(Si7.87Al0.13)O22(OH)2 has been refined by single crystal X-ray methods using 1930 independent reflections. The space group is Pnma with the unit cell dimensions a = 18.254(2), b = 17.636(2), c = 5.270(1) Å and V = 1696.6(4) Å3, Z = 4. Chemical and optical data are given. The refinement of the atomic parameters and of the cation distribution gives final R-values of R = 0.023 and Rw = 0.027. The cation distribution is dominated by the preferential occupation of M4 by Li and of M2 by Al. M1 and M3 are not statistically occupied by Mg and Fe2+. The coordination of M4 is highly irregular with five next oxygens and two longer M4 – O-distances. The A-site is found to be empty.
Published Online: 2010-08-25
Published in Print: 1989
You are currently not able to access this content.
You are currently not able to access this content.
Articles in the same Issue
- Structure of 2,10-dibromo-3-chloro-7R,8S-epoxychamigrene
- Structural determination of a lead-lithium monophosphate, LiPbPO4
- Reciprocal lattice scan modes in single crystal diffractometry: a reexamination for cases of mineralogical interest
- Experimental charge density in polythionate anions: II. X-ray study of the electron density distribution in potassium tetrathionate, K2S4O6
- An uncommon Cu[2+4]O6 coordination polyhedron in the crystal structure of KCu3(OH)2[(AsO4)H(AsO4)] (with a comparison to related structure types)
- Some aspects of information theory and phase problem: Effect of heavy atoms on information content in P[unk]
- The crystal structure of hexaaquacopper(II) bis(7-oxabicyclo[2.2.1]heptane-2,3-dicarboxylato)cuprate(II)
- Crystal and molecular structure of an isostere of purine ring system: 7-benzylamino-2-methylmercaptothiazolo [5,4-d] pyrimidine
- A novel form of molybdenum (V) phosphate: δ-KMo2P3O13
- Structure cristalline et moléculaire du camphosulfonate de l'α-(tétrahydro-4,5,6,7 thiéno (3,2-c) pyridyl-5) (chloro-2 phényl)-acétate de méthyle, C26H32NO6S2Cl. Configuration absolue
- Verfeinerung der Kristallstruktur von Holmquistit vom Brandrücken/Weinebene, Koralpe, Österreich
- Structural relationships of zeolite frameworks: “5-ring zeolites”
- Symmetry restrictions on minimal surfaces related by the Bonnet-transformation
- Crystal and molecular structure of N-p-fluorobenzoyl-l-valine
- Thermal decay of laser-induced long living metastable electronic states in Na2[Fe(CN)5NO] · 2H2O single crystals
- Crystal structures of three substituted ammonium hexachlororhenates(IV)
Articles in the same Issue
- Structure of 2,10-dibromo-3-chloro-7R,8S-epoxychamigrene
- Structural determination of a lead-lithium monophosphate, LiPbPO4
- Reciprocal lattice scan modes in single crystal diffractometry: a reexamination for cases of mineralogical interest
- Experimental charge density in polythionate anions: II. X-ray study of the electron density distribution in potassium tetrathionate, K2S4O6
- An uncommon Cu[2+4]O6 coordination polyhedron in the crystal structure of KCu3(OH)2[(AsO4)H(AsO4)] (with a comparison to related structure types)
- Some aspects of information theory and phase problem: Effect of heavy atoms on information content in P[unk]
- The crystal structure of hexaaquacopper(II) bis(7-oxabicyclo[2.2.1]heptane-2,3-dicarboxylato)cuprate(II)
- Crystal and molecular structure of an isostere of purine ring system: 7-benzylamino-2-methylmercaptothiazolo [5,4-d] pyrimidine
- A novel form of molybdenum (V) phosphate: δ-KMo2P3O13
- Structure cristalline et moléculaire du camphosulfonate de l'α-(tétrahydro-4,5,6,7 thiéno (3,2-c) pyridyl-5) (chloro-2 phényl)-acétate de méthyle, C26H32NO6S2Cl. Configuration absolue
- Verfeinerung der Kristallstruktur von Holmquistit vom Brandrücken/Weinebene, Koralpe, Österreich
- Structural relationships of zeolite frameworks: “5-ring zeolites”
- Symmetry restrictions on minimal surfaces related by the Bonnet-transformation
- Crystal and molecular structure of N-p-fluorobenzoyl-l-valine
- Thermal decay of laser-induced long living metastable electronic states in Na2[Fe(CN)5NO] · 2H2O single crystals
- Crystal structures of three substituted ammonium hexachlororhenates(IV)
