Work

Synthesis and crystal structure of the mixed-valent Te IV/VI compound PbTe 3 O 8

Year: 2026

Type: article

Abstract: The crystal structure of the mixed-valent compound PbTe 3 O 8 (= Pb II Te IV 2 Te VI O 8 ), lead(II) bis[oxidotellurate(IV)] tellurate(VI), is isotypic with that of SrTe 3 O 8 . It comprises 1 ∞ [Te 3 O 8 ] 2– chains sharing O atoms to form a framework with two types of square channels extending parallel to [001]. The smaller channels (diameter ∼4 Å) are occupied by 12-coordinate Pb II atoms in the centre of the channel, whereas the slightly larger channels (diameter ∼4.5 Å) accommodate the stereoactive 5 s 2 electron lone pair of Te IV .

Source: Acta Crystallographica Section E Crystallographic Communications

DOI: 10.1107/s2056989026010996

Author: Matthias Weil

Institution: TU Wien

Language: English

Topic: Crystal Structures and Properties

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $500

Funders: Technische Universität Wien, Technische Universität Wien Bibliothek