Synthesis and characterization of K_3Cu_(11)Te_(16) from supercritical ethylenediamine

摘要

Reaction of copper with potassium polytelluride, K_2Te_5, in supercritical ethylenediamine (305 deg C, 2370 psi) led to a new compound with building blocks formed from Cu_8Te_(12) pentagonal dodecahedral cages made with Cu_2Te_3 pentagons; the dodecahedrons are connected by copper atoms and tritelluride fragments to generate tunnels filled with potassium.