Artikel
Lizenziert
Nicht lizenziert
Erfordert eine Authentifizierung
X-ray powder crystal structure analysis of high pressure tungsten dioxide. On the information in weak reflections
Veröffentlicht/Copyright:
28. Juli 2010
Abstract
A high-pressure modification of tungsten dioxide (hp-WO2) was synthesized at 80 kbar and 1120 K. The structure was determined from X-ray powder diffraction data: hp-WO2, M = 215.85, space group Pnma, a = 9.7164(3) Å, b = 8.4380(3) Å, c = 4.7564(2) Å, Z = 12, Dx = 11.03 g cm−3, Rwp = 0.12 and RB = 0.078 from Rietveld refinement. Although the heavy atom structure may be reasonably well described in space group Cmcm, the total structure can only be described in Pnma. The important information contained in non observable and very weak reflections is discussed.
In the hp-WO2, modification the W atoms occupy half of the octahedral interstices of an hcp arrangement of oxygen atoms. It can be described as a distorted rutile structure which is twinned at the unit cell level. An essential feature is that groups of three edge-sharing WO6 octahedra are formed at twin planes. The relation between the ambient-pressure (distorted rutile type) and the high pressure modifications is discussed.
Published Online: 2010-7-28
Published in Print: 1994-8-1
© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Sie haben derzeit keinen Zugang zu diesem Inhalt.
Artikel in diesem Heft
- Proportional colored symmetry of friezes
- Neutron microfocusing with bent crystals
- Structural phase transitions in the superionic conductors Na9{Fe2[PO4]4(O, F)2} and Na8{Ti2[PO4]4O2} in the temperature range 520–540 K
- Crystal structure of Nd3Au4 and Nd17Au36
- Crystal structure of MgAlPO5
- X-ray powder crystal structure analysis of high pressure tungsten dioxide. On the information in weak reflections
- Crystal structure of Z-2-(6,7-dimethoxytetrahydroisoquino-1-ylidene)-[2-(3,4-dimethoxyphenyl)-ethyl]-acetamide 1
- Synthesis and structural characterization of 1-[1-(naphthalenyl)]-3-(4-nitrophenyl)-2-propen-1-one1
- Structure of [4.4]paracyclophane and three [m.n]paracyclophane derivatives
- Crystal and molecular structure of C.I. Solvent Brown 1, 1,3-diamino phenyl azo-2-naphthalene
- An example of water forming double three-center hydrogen bonds. Crystal structure of bis(aquadichloromethylphenyltin) · 18-crown-6
- Crystal structure of tricopper tetraselenoantimonate (V), Cu3SbSe4
- Crystal structure of ammonium tetraiodoindate (III), NH4InI4
- Crystal structure of dicopper titanium tritelluride, Cu2TiTe3
- Crystal structure of cis-bis(diphenylphosphino)ethene, ((C6H5)2P)2C2H2
- Crystal structure of bis(triphenylphosphine)iminium tetrakis(pentafluorophenyl)aurate(III), [((C6H5)3P)2N]+[Au(C6F5)4]−
- Crystal structure of di(2-methoxy-3-t-butyl-5-methyl phenyl)methyl methyl ether, (H3COCH3C4H9C6H2)2HCOCH3
- Crystal structure of catena{bis[μ-(2-pyridinecarboxilato-μ-O2,O1,N)] mercury(II)}, Hg((C5H4N)(CO2))2
- Crystal structure of N,N-dimethylurea, (CH3)2NOCNH2
- Crystal structure of N,N-dimethylselenourea, (CH3)2NSeCNH2
- Crystal structure of N,N-dimethylthiourea, (CH3)2NSCNH2
- Crystal structure of μ-hydrido-μ-methylphenylphosphido-octacarbonyl-dirhenium, C15H9O8PRe2
- Crystal structure of μ-hydrido-μ-di-parafluorophenyl-phosphido-octacarbonyl-dirhenium, C20H9F2O8PRe2
- Crystal structure of μ-hydrido-μ-diphenylphosphido-octacarbonyl-dirhenium, C20H11O8PRe2
- Crystal structure of μ-hydrido-μ-di-paramethoxyphenyl-phosphido-octacarbonyl-dirhenium, C22H15O10PRe2
- Crystal structure of μ-hydrido-μ-bis(pentafluorophenyl)-phosphido-octacarbonyl-dirhenium, C20HF10O8PRe2
- Crystal structure of cerium dipalladium gallide, CePd2Ga
- Crystal structure of platinum silicon telluride, PtSiTe
Artikel in diesem Heft
- Proportional colored symmetry of friezes
- Neutron microfocusing with bent crystals
- Structural phase transitions in the superionic conductors Na9{Fe2[PO4]4(O, F)2} and Na8{Ti2[PO4]4O2} in the temperature range 520–540 K
- Crystal structure of Nd3Au4 and Nd17Au36
- Crystal structure of MgAlPO5
- X-ray powder crystal structure analysis of high pressure tungsten dioxide. On the information in weak reflections
- Crystal structure of Z-2-(6,7-dimethoxytetrahydroisoquino-1-ylidene)-[2-(3,4-dimethoxyphenyl)-ethyl]-acetamide 1
- Synthesis and structural characterization of 1-[1-(naphthalenyl)]-3-(4-nitrophenyl)-2-propen-1-one1
- Structure of [4.4]paracyclophane and three [m.n]paracyclophane derivatives
- Crystal and molecular structure of C.I. Solvent Brown 1, 1,3-diamino phenyl azo-2-naphthalene
- An example of water forming double three-center hydrogen bonds. Crystal structure of bis(aquadichloromethylphenyltin) · 18-crown-6
- Crystal structure of tricopper tetraselenoantimonate (V), Cu3SbSe4
- Crystal structure of ammonium tetraiodoindate (III), NH4InI4
- Crystal structure of dicopper titanium tritelluride, Cu2TiTe3
- Crystal structure of cis-bis(diphenylphosphino)ethene, ((C6H5)2P)2C2H2
- Crystal structure of bis(triphenylphosphine)iminium tetrakis(pentafluorophenyl)aurate(III), [((C6H5)3P)2N]+[Au(C6F5)4]−
- Crystal structure of di(2-methoxy-3-t-butyl-5-methyl phenyl)methyl methyl ether, (H3COCH3C4H9C6H2)2HCOCH3
- Crystal structure of catena{bis[μ-(2-pyridinecarboxilato-μ-O2,O1,N)] mercury(II)}, Hg((C5H4N)(CO2))2
- Crystal structure of N,N-dimethylurea, (CH3)2NOCNH2
- Crystal structure of N,N-dimethylselenourea, (CH3)2NSeCNH2
- Crystal structure of N,N-dimethylthiourea, (CH3)2NSCNH2
- Crystal structure of μ-hydrido-μ-methylphenylphosphido-octacarbonyl-dirhenium, C15H9O8PRe2
- Crystal structure of μ-hydrido-μ-di-parafluorophenyl-phosphido-octacarbonyl-dirhenium, C20H9F2O8PRe2
- Crystal structure of μ-hydrido-μ-diphenylphosphido-octacarbonyl-dirhenium, C20H11O8PRe2
- Crystal structure of μ-hydrido-μ-di-paramethoxyphenyl-phosphido-octacarbonyl-dirhenium, C22H15O10PRe2
- Crystal structure of μ-hydrido-μ-bis(pentafluorophenyl)-phosphido-octacarbonyl-dirhenium, C20HF10O8PRe2
- Crystal structure of cerium dipalladium gallide, CePd2Ga
- Crystal structure of platinum silicon telluride, PtSiTe
