A new form of polyheptatellurium dication, {[Te-7][ASF(6)](2)}(infinit
y), has been synthesized at room temperature and structurally characte
rized by single-crystal X-ray crystallography. The new infinite polyme
ric chain consists of six-membered rings bridged through a tellurium a
tom; Its structure is discussed and compared to those of other telluri
um cation systems, including another polyheptatellurium dication, {[Te
-7][WOBr5](2)}(infinity), and the previously reported ''{[Te-6][AsF6](
2)''.