New reduced ternary titanates from borate fluxes

Journal Article · Tue Oct 01 04:00:00 EDT 1991 · Journal of Solid State Chemistry; (United States)

DOI:https://doi.org/10.1016/0022-4596(91)90196-O· OSTI ID:7165067

Hessen, B; Sunshine, S A; Siegrist, T ^[1]

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1. AT and T Bell Labs., Murray Hill, NJ (United States)

Single crystals of the new reduced strontium titanate SrTi{sub 11}O{sub 20} (space group P{bar 1}, a = 7.1252(8) {angstrom}, b = 7.6644(8) {angstrom}, c = 13.1577(16) {angstrom}, {alpha} = 90.21(1){degree}, {beta} = 92.79(1){degree}, {gamma} = 103.94(1){degree}) are formed by slowly cooling SrTiO{sub 2.5} in molten SrO{center dot}2B{sub 2}O{sub 3} flux in high vacuum. The compound crystallizes in a new structure type based on sheared double and single rutile chains of TiO{sub 6} octahedra. Formation of a new monoclinically distorted reduced Ti-hollandite, La{sub 1.33}Ti{sub 8}O{sub 16} (space group I2/m, a = 9.946(2) {angstrom}, b = 2.9668(4) {angstrom}, c = 10.280(2) {angstrom}, {beta} = 91.09(2){degree}), was observed upon dissolving LaTiO{sub 3} in a molten La{sub 2}O{sub 3}{center dot}3B{sub 2}O{sub 3} flux. The crystal structures of both compounds were determined by single crystal X-ray diffraction.

• OSTI ID: 7165067
• Journal Information: Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 94:2; ISSN 0022-4596; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
AQUEOUS SOLUTIONS
CERAMICS
CHALCOGENIDES
CHEMICAL PREPARATION
COHERENT SCATTERING
CRYSTAL STRUCTURE
DIFFRACTION
DISPERSIONS
FLUORINE COMPOUNDS
HALOGEN COMPOUNDS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LANTHANUM COMPOUNDS
MIXTURES
OXIDES
OXYGEN COMPOUNDS
POWDERS
RARE EARTH COMPOUNDS
SCATTERING
SOLUTIONS
STRONTIUM COMPOUNDS
STRONTIUM TITANATES
SYNTHESIS
TITANATES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION