This book discusses the chemistry, physical properties and structural effects of halides. Topics include the physical properties of alkali halide clusters and cluster-assembled materials; the synthesis of the nano-crystalline organic-inorganic composite nylon-6,6 nickel carbonate membrane; nucleophilic substitution and palladium-catalyzed coupling mechanisms of aromatic halides; dislocation pinned by a monovalent ion in various alkali halide crystals; and the non-linear elastic properties and Gruneisen constants of alkali halide.