Electron attachment to strongly polar clusters: formamide molecule and clusters.

Electron localization is studied in formamide cluster anions. The isolated formamide molecule has a large dipole moment and its clusters can give birth to multipole-bound anions as well as valence anions. The vertical electron affinity of tyhe isolated molecule is determined by means of Electron Transmission Spectroscopy. The anion formation process is studied as a function of cluster size with Rydberg Electron Transfer Spectroscopy. The localization properties of the cluster anions are investiagted with Density Functional Theory calculations