The unique behavior of compounds confined at interfaces can be very different from those in bulk situations. Determining structure and chemical bonding at surfaces is central to continued progress in the field, and there are several questions yet to be answered: how can chemical reactivity be optimised for selective and efficient processes? How reliable are methods for determining molecular conformation at surfaces? How can the diffusion of molecules at surfaces be controlled in order to influence growth? This Faraday Discussion focusses on understanding the interaction of molecules with...

The halogen bond may be considered as a special case of sigma-hole bonding, wherein an electron donor interacts with the electrophilic region of a halogen atom. Within this broader picture, sigma-hole bonding can encompass a range of non-covalent interactions which are named after the atom bearing the electrophilic region, also known as the sigma-hole. This Faraday Discussion unites experimentalists and theoreticians, who are pushing the applicability of this broad class of interactions far beyond only the halogens. The book develops a fundamental understanding of key aspects of non-covalent...