{alpha}- and {beta}-La{sub 4}Ti{sub 9}Si{sub 4}O{sub 30}. Synthesis and structure of the second member (m = 2) of novel layered oxosilicates containing (110) rutile sheets. Electrical property and band structure characterization of the mixed-valence titanium(III/IV) oxosilicate series, La{sub 4}Ti(Si{sub 2}O{sub 7}){sub 2}(TiO{sub 2}){sub 4m} (m = 1, 2)
Journal Article
·
· Journal of the American Chemical Society
- Rice Univ., Houston, TX (United States)
- North Carolina State Univ., Raleigh, NC (United States)
Detailed description is presented of molten salt synthesis, single crystal structures, and a comparison is offered of the {alpha}- and {beta}-La{sub 4}Ti{sub 9}Si{sub 4}O{sub 30} phases. The electrical property and band struture of this mixed-valence titanium (III/IV) oxosilicate series, La{sub 4}Ti(Si{sub 2}O{sub 7}){sub 2}(TiO{sub 2}){sub 4m} (m = 1,2), are discussed in terms of electronic interactions in a confined space with respect to the (110) rutile sheets. The results from the extended Hueckel tight binding calculations and the bond valence sum analysis are contrasted with regard to charge distribution. 33 refs., 9 figs., 3 tabs.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG05-86ER45259
- OSTI ID:
- 62309
- Journal Information:
- Journal of the American Chemical Society, Vol. 117, Issue 20; Other Information: PBD: 24 May 1995
- Country of Publication:
- United States
- Language:
- English
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