Preparation and Crystal Structure Model of a New Strontium Tantalum Sulfide: Sr17Ta10S42

✍ Scribed by Mitsuko Onoda; Masanobu Saeki; Yoshiyuki Yajima

• Book ID: 102603765
• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 335 KB
• Volume: 105
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1993.1225

✦ Synopsis

A new strontium tantalum sulfide, (\mathrm{Sr}{77} \mathrm{Ta}{10} \mathrm{~S}{42}), has been prepared by sulfurization of a mixture of (\mathrm{SrCO}{3}) and (\mathrm{Ta}{2} \mathrm{O}{5}). The electron and powder (\mathrm{X})-ray diffraction patterns of the compound were indexed on the basis of a rhombohedral cell with hexagonal setting lattice constants of (a=18.1525(4)) and (c=18.6574(4) \AA). A structure model described in space group (R 3) with additional local symmetry operations is proposed based on the Rietveld analysis of the powder X-ray diffraction intensities. - 1993 Academic Press, Inc.