Synthesis and Structural Characterization of a New Lanthanum Oxychlorosulfide La5Ti6S3Cl3O15

✍ Scribed by Pierre Palvadeau; Marie-Christine Boyer; Alain Meerschaut; Jean Rouxel

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 532 KB
• Volume: 139
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1998.7805

✦ Synopsis

A new oxychlorosulfide compound La 5 Ti 6 S 3 Cl 3 O 15 has been prepared from the reaction of LaOCl with a mixture of La 2 S 3 and TiS 2 . Single crystal X-ray diffraction studies show that this compound crystallizes in the space group Im-3 (C204) of the cubic system (a‫)6(6514.21؍‬ A s , Z‫.)4؍‬ Data collection was obtained using a CAD4 Enraf Nonius diffractometer. Structural refinement was made with the program SHELXTL using 783 independent reflections. The final refinement resulted in conventional R factors, R 1 ‫؍‬ 0.038 for 563 reflections, with F > 4 (F), R‫؍‬ 0.069, and Rw (F 2 ‫؍)‬ 0.126 for all reflections. The structure contains two types of La atoms with coordinations of 10 and 12, and Ti is in a distorted octahedral coordination to five oxygen atoms and one sulfur or chlorine atom.