Synthesis and characterization of the pseudo-hexagonal hollandites ALi{sub 2}Ru{sub 6}O{sub 12} (A=Na, K)

Journal Article · Wed Mar 15 00:00:00 EST 2006 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2005.12.011· OSTI ID:20784941

Foo, M L ^[1]; He, T ^[2]; Huang, Q ^[3]; Zandbergen, H W ^[4]; Siegrist, T ^[5]; Lawes, G ^[6]; Ramirez, A P ^[5]; Cava, R J ^[1]

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1. Department of Chemistry, Princeton University, Princeton, NJ (United States)
2. Dupont Central Research and Development, Wilmington, DE (United States)
3. Center for Neutron Research, NIST, Gaithersburg, MD (United States)
4. National Center for High Resolution Electron Microscopy, Delft Institute of Technology, Delft (Netherlands)
5. Lucent Technologies, Bell Labs, Murray Hill, NJ (United States)
6. Department of Astronomy and Physics, Wayne State University, Detroit, MI (United States)

The crystal structures, synthesis and physical properties of ruthenium hollandites ALi{sub 2}Ru{sub 6}O{sub 12} (A=Na, K) with a new pseudo-hexagonal structure type are described. Analogous to tetragonal hollandites, the framework is made of MO{sub 6} octahedra in double chains that share corner oxygens with each other to create interstitial tunnels. The tunnels are either hexagonal or triangular in cross-section. Magnetic susceptibilities, low temperature specific heat, and electrical resistivities are reported. The data indicate that these materials are normal, low density of states metals. This new structure type can be extended from A=Group I to A=Group II ions with the synthesis of CaLi{sub 2}Ru{sub 6}O{sub 12} and SrLi{sub 2}Ru{sub 6}O{sub 12}.

• OSTI ID: 20784941
• Journal Information: Journal of Solid State Chemistry, Vol. 179, Issue 3; Other Information: DOI: 10.1016/j.jssc.2005.12.011; PII: S0022-4596(05)00612-2; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CRYSTAL STRUCTURE
DENSITY
ELECTRIC CONDUCTIVITY
ELECTRON DIFFRACTION
HOLLANDITE
LITHIUM COMPOUNDS
LITHIUM IONS
MAGNETIC SUSCEPTIBILITY
NEUTRON DIFFRACTION
POTASSIUM COMPOUNDS
RUTHENIUM COMPOUNDS
SODIUM COMPOUNDS
SPECIFIC HEAT
SYNTHESIS
X-RAY DIFFRACTION