Synthesis, Structure, and Thermal Stability of Li3AlB2O6

✍ Scribed by M He; X.L Chen; V Gramlich; Ch Baerlocher; T Zhou; B.Q Hu

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 385 KB
• Volume: 163
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.2001.9364

✦ Synopsis

A new compound, Li 3 AlB 2 O 6 , has been synthesized by solid state reaction and its structure has been solved and re5ned from single-crystal and power X-ray di4raction data. This compound crystallizes in a triclinic unit cell (space group P1 ) with lattice parameters a ‫؍‬ 4.876(8) A s , b ‫؍‬ 6.191(16) A s , c ‫؍‬ 7.910(20) A s , ‫؍‬ 74)46(18)3, ‫؍‬ 89.44(17)3, and ‫؍‬ 89.52(18)3. There are 2 formulas per unit cell and 12 atoms in the asymmetric unit. This structure is built up of in5nite [Al 2 (BO 3 ) 4 ] 6؊ complex chains that are parallel to the a axis and separated by Li atoms. Although this structure exhibits many structural similarities to a previously reported compound with the same chemical composition, its unit cell and its powder di4raction pattern are di4erent and so is the distribution of the Li atoms. Infrared and thermal analyses were also performed to compare with previous reports.

2002 Elsevier Science (USA)