Hg_xTiS₂
a model weak-charge-transfer system

• essentially neutral guest species

• reversible intercalation

• unusual properties

  • superstoichiometric amounts of Hg (x>1)

  • complex structure

  • intriguing structural properties

Deintercalation can be initiated and controlled thermally within a range of temperatures convenient for TEM

Allows the study of staging processes in the absence of interlayer guest-guest repulsions: evaluation of relative importance of elastic and electrostatic forces