Synthesis and Crystal Structure of Ramsdellite-Type Li0.5TiO2

✍ Scribed by J. Akimoto; Y. Gotoh; M. Sohma; K. Kawaguchi; Y. Oosawa; H. Takei

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 333 KB
• Volume: 110
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1994.1149

✦ Synopsis

Black single crystals of (\mathrm{Li}{0.5} \mathrm{TiO}{2}) were synthesized by the reaction of lithium metal and titanium dioxide at (1473 \mathrm{~K}). It crystallizes in the orthorhombic ramsdellite-type structure, space group Pbnm with (a=5.0356(6), b=9.6377(8), c=2.9484(7) \lambda, V=) 143.09(4) (\AA^{3}), and (Z=4). The structure was determined from a single-crystal X-ray study and refined to the conventional values (R=0.038) and (w R=0.046) for 744 independent reflections. The distorted octahedral sites are occupied only by (\mathrm{Ti}) atoms, and a (\mathrm{Li}) atom is located at one tetrahedral tunnel site with the occupancy factor of 0.45(2). 1994 Academic Press, Inc.