Parallel tempering Monte Carlo simulations of the water heptamer anion

Electron binding energy distributions from PTMC simulations of (H2O)7- at temperatures of 50 and 200 K are presented. Two representative isomers are shown. PRB is the global minimum isomer and PNFA is the most stable isomer with a double acceptor monomer. The isosurfaces containing 85% of the excess electron density, are shown.