A Semiconductor or A One-Dimensional Metal and Superconductor through Tellurium π Stacking (pages 8106–8109)
Dr. Ejaz Ahmed, Prof. Dr. Johannes Beck, Dr. Jörg Daniels, Prof. Dr. Thomas Doert, Dr. Steffen Jan Eck, Dr. Andreas Heerwig, Dr. Anna Isaeva, Prof. Dr. Sven Lidin, Prof. Dr. Michael Ruck, Dr. Walter Schnelle and Dr. Alexander Stankowski
Version of Record online: 4 JUL 2012 | DOI: 10.1002/anie.201200895
One-dimensional conductor: Strong π interactions between ecliptically stacked tellurium squares in Te4[Bi0.74Cl4] trigger excellent one-dimensional metallic conductivity as well as superconductivity below 7.15 K under ambient pressure. The electron-precise counterpart, Te4[Bi0.67Cl4], is a semiconductor. The bismuth content and temperature- dependent competition of intra- and inter-ring bonding account for the electronic conduction.