This volume contains the invited papers and selected contributed papers presented at the biennial International Symposium on ELECTRON COLLISIONS WITH MOLECULES, CLUSTERS AND SURF ACES held at Royal Holloway, University of London from 29th to 30th July, 1993. This Symposium was a Satellite Meeting of the XVIII International Conference on the Physics of Electronic and Atomic Collisions (ICPEAC) and follows a 16 year tradition of Satellite Conferences in related areas of collisions held in association with previous ICPEAC's. In the past each of these electron -molecule symposia covered the broad field of electron-molecule scattering at rather low energies, but also included hot topics. This time as well as covering the whole field, well defined electron collisions with clusters and with particles in the complex potential of a surface were emphasized. Not many details are known about such collisions, although they become more and more important in surface characterisation, plasma-wall interactions, electron induced desorption and reorganisation of adsorbed particles. Recently, much work, theoretical and experimental, has been devoted to electron collisions with rather large carbon, silicon and halogen containing molecules. These problems are of relevance in plasma assisted thin film formation and etching of surfaces and can now be approached with advanced theoretical methods and experimental equipment.

Zusammenfassung
Proceedings of a biennial international symposium held as a satellite meeting of the Eighteenth International Conference on the Physics of Electronic and Atomic Collisions in London, United Kingdom, July 29-30, 1993

Inhalt
Electron Collisions with Molecules.- Non-Adiabatic Effects in Low-Energy Electron-Molecule Scattering.- R-Matrix Calculations of Inelastic Electron Scattering by Diatomic Molecules.- Differential Electron Impact Cross Section of the a3? Electronic Excitation of CO Near Threshold.- Electron Scattering by Vibrationally Excited Molecules.- Dissociative Attachment of Low Energy Electrons: Vibrational Dependence of Negative Ion Formation in Na2 (?) +e Collisions.- A Generalized Single Centre Approach for Treating Electron Scattering from Polyatomic Molecules.- Low Energy Electron Scattering by Polar Polyatomic Molecules.- Recent Experiments on Electron-Polyatomic Molecule Scattering.- Dissociative Attachment in CH3C1 and C2H5C1: Experiment and Theory.- Electron Impact Induced Dissociative Excitation and Ionization of Halogen-Containing Molecules.- Valence and Inner Shell Multipole Electronic Excitations in Chlorofluorocarbons by Momentum-Transfer-Resolved Electron Energy Loss Spectroscopy.- The Scattering of Electrons by Chiral and Oriented Molecules.- The Scattering of Longitudinally Polarized Electrons from Chiral Molecules and Optical Rotatory Power.- Electron Collisions with Clusters.- Theoretical Study of Electron Scattering by Small Clusters and Adsorbates.- Low-Energy Electron Collisions with Metal Clusters: Electron Capture and Cluster Fragmentation.- High Resolution Electron Energy Loss Spectroscopy of Free Fullerenes.- Electronic Excitation of C60 Vapour by Electron Energy Loss Spectroscopy.- Electron Collisions at Surfaces.- Electron Scattering by Adsorbed Molecules: Dynamics of the Resonant Vibrational Excitation.- Resonant Electron Scattering by Adsorbed Molecules: Effect of the Molecular Axis Orientation.- Applications of EELS in the Photochemistry and in theCharacterization of Thin Al-Oxide Layers.- Electron Scattering by Oriented Molecules on Surfaces.- Participants.