Quantum Mechanics in Chemistry combines both introductory and modern q uantum chemistry in a single volume. Unlike similar books, which conce ntrate on quantum physics and provide only brief examples of chemical applications, this unique work focuses on the topics a chemist needs t o know. It provides an introduction to the fundamentals of quantum mec hanics as they apply to chemistry, then moves on to the more modern as pects of the field, which are very important in industry and are not e mphasized in any other book. It also includes introductions to molecul ar spectroscopy, chemical dynamics, and computational chemistry as app lied to electronic structures. A disk of text-related computer program s and a large number of exercises, problems, and solutions further enh ance the flexibility and utility of the volume for professionals in th e field and other interested readers.