Abstract
The crystal structure of the mixed-valence tellurium compound strontium ditellurate(IV) tellurate(VI) was redetermined from single-crystal data. The previous structural model, determined ab initio from powder X-ray diffraction data [Barrier et al. (2006). J. Solid State Chem. 179, 3484–3488], was confirmed, but with all atoms refined with anisotropic displacement parameters and with differences in individual Te—O bond lengths up to 0.05 A. The structure is composed of [Te3O8]∞2− chains that extend parallel to [001] and [110] to form a channel structure. Whereas one half of the channel is occupied by the Sr atoms in an eightfold coordination, the other half remains unoccupied, with the electron lone pairs of TeIV protruding into the empty space. Except for one O atom, all other atoms are on special positions: Sr (\overline{4}.. symmetry), Te1 (m..), Te2 (2/m..), O1 (m..) and O2 (m..).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Acta Crystallographica Section E Structure Reports Online
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
