This volume contains peer-reviewed chapters and original research on chemistry and its broad range of applications in chemical engineering. Covering both theoretical and practical applications of modern chemistry, the book presents a different aspects of chemistry and chemical engineering. The book includes the most significant new research papers and other original contributions on the structure of single molecules and radicals, molecular assemblies, gases, liquids (including water and solutions), amorphous and crystalline solids, surfaces, films and nanoparticles (including inorganic, organic and organometallic compounds), molecular and polymeric materials, single crystals, and minerals. The aim of this multidisciplinary book is to promote communication and dialogue among researchers, scientists, engineers, and policymakers working in the areas of modern chemistry and chemical engineering and who deal with all structural aspects of modern chemistry and chemical engineering. The research provided here will be especially valuable to those interested in the principles of chemical bonding and matter organization, the impact of structural aspects on a chemical property or transformation, and the application of the newest physical methods in chemical structure research.