Synthesis and structural chemistry of La{sub 18}Li{sub 8}Rh{sub 4}MO{sub 39} (M=Ti, Mn, Ru)

Journal Article · Thu Jul 15 04:00:00 EDT 2010 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2010.05.005· OSTI ID:21421554

Dutton, Sian E ^[1]; Daesdonk, Peter A. van ^[1]

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1. Inorganic Chemistry Laboratory, Department of Chemistry, Oxford University, South Parks Road, Oxford OX1 3QR (United Kingdom)

Polycrystalline samples of La{sub 18}Li{sub 8}Rh{sub 4}MO{sub 39} (M=Ti, Mn, Ru) have been prepared by a solid-state method and studied by neutron powder diffraction. They are isostructural with La{sub 18}Li{sub 8}Rh{sub 5}O{sub 39} and adopt the cubic space group Pm3{sup -bar }n with a {approx}12.22 A. Their structure consists of a La-O framework containing intersecting channels that run along <111>. These channels are occupied by chains made up of alternating, face-sharing trigonal-prismatic and octahedral coordination polyhedra; there are two crystallographically distinct types of octahedral site. The prisms are occupied by Li and the transition metals are disordered over the two octahedral sites. - Graphical abstract: The substitution of Ti, Mn or Ru into La{sub 18}Li{sub 8}Rh{sub 5}O{sub 39} results in the loss of the cation ordering seen in the parent compound.

• OSTI ID: 21421554
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 7 Vol. 183; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALKALI METAL COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
CUBIC LATTICES
DIFFRACTION
LANTHANUM COMPOUNDS
LITHIUM COMPOUNDS
MANGANESE COMPOUNDS
NEUTRON DIFFRACTION
OXIDES
OXYGEN COMPOUNDS
POLYCRYSTALS
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
RHODIUM COMPOUNDS
RUTHENIUM COMPOUNDS
SCATTERING
SPACE GROUPS
SYMMETRY GROUPS
SYNTHESIS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS