Synthesis and Structure of Bismuth Copper Vanadate, BiCu2VO6

✍ Scribed by Ivana Radosavljevic; John S.O. Evans; Arthur W. Sleight

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 453 KB
• Volume: 141
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1998.7931

✦ Synopsis

The new compound BiCu 2 VO 6 was synthesized, and its structure was determined from single-crystal X-ray diffraction data collected at 150 and 298 K. This compound crystallizes in space group P2 1 /n with Z ‫؍‬ 12 at both temperatures. At room temperature, a ‫؍‬ 13.4932(1) A > , b ‫؍‬ 7.8224(1) A > , c ‫؍‬ 15.7972(1) A > , and ‫؍‬ 113.113(1)°. The structure contains (BiO 2 ) ؊ chains and (VO 4 ) 3؊ tetrahedra with three crystallographically distinct sites for both Bi 3؉ and V 5؉ . There are six crystallographically distinct sites for Cu 2؉ ; four show a square-pyramidal environment, and two are in distorted octahedra. The square pyramids share edges and corners, forming Cu 4 O 14 units.

1998 Academic Press

SOLUTION AND REFINEMENT OF STRUCTURE

The structure of BiCu VO was solved from room temperature single-crystal data. The 60 diffraction images were used to determine and refine the unit cell parameters. Indexing gave a monoclinic cell with the parameters a" 13.471(1)