Supercubooctahedron (Cs6Cl)2Cs5[Ga15Ge9Se48] Exhibiting Both Cation and Anion Exchange

Chemistry. 2015 Jun 26;21(27):9809-15. doi: 10.1002/chem.201405719. Epub 2015 May 15.

Abstract

A novel type of supertetrahedral connectivity is exhibited by the 72-atom discrete supercubooctahedron in (Cs6Cl)2Cs5[Ga15Ge9Se48] (1), which undergoes both cation and anion exchange, as revealed by unambiguous single-crystal X-ray diffraction data. Electronic-structure studies helped to understand the Ge/Ga distribution.

Keywords: chalcogenides; cluster compounds; ion exchange; solid-state reactions; solid-state structures.