The seventh Jerusalem Symposium has tried to penetrate into a field of research towards which the efforts of a large number of the most variegated modern techniques are conversing: molecular and quantum pharmacology. The hope to elucidate the mode of action of drugs, to establish correlations between the electronic and con formational structures of drugs and their mode of action and level of activity, to derive from these data the nature of the cellular receptors and an understanding of the interaction of the drugs with those receptors - is a strong stimulus to enlarge and deepen the research efforts with the ultimate view to rationalize the design of more efficient and more specific drugs. The Symposium represents an attempt to survey the progress made so far in this respect and the methods and efforts employed in order to arrive at even greater achievements. The presentation of this Symposium differs somewhat from that of the preceding ones. Owing to the political events which disturbed the peace in the Middle East and therefore the normal activities of commerce and industry in Israel at least temporarily, the printing and distribution of this volume were entrusted to the Reidel Publishing Company. We wish to thank them for their very efficient col1aboration and for all their efforts to publish this volume with a minimum delay.

Advances in Quantum Chemistry presents surveys of current topics in this rapidly developing field one that has emerged at the cross section of the historically established areas of mathematics, physics, chemistry, and biology. It features detailed reviews written by leading international researchers. In this volume the readers are presented with an exciting combination of themes. - Presents surveys of current topics in this rapidly-developing field that has emerged at the cross section of the historically established areas of mathematics, physics, chemistry and biology - Features detailed reviews written by leading international researchers - Topics include: New advances in Quantum Chemical Physics; Original theory and a contemporary overview of the field of Theoretical Chemical Physics; State-of-the-Art calculations in Theoretical Chemistry

This volume looks at applications of quantum mechanical (QM) methods in drug discovery. The chapters in this book describe how QM approaches can be applied to address key drug discovery issues, such as characterizing protein-water-ligand and protein-protein interactions, providing estimates of binding affinities, determining ligand energies and bioactive conformations, refinement of molecular geometries, scoring docked protein–ligand poses, describing molecular similarity, structure–activity-relationship (SAR) analysis, and ADMET prediction. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary software and tools, step-by-step, readily reproducible modeling protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and unique, Quantum Mechanics in Drug Discovery is a valuable resource for structural and molecular biologists, computational and medicinal chemists, pharmacologists, and drug designers.

This book focuses on current applications of molecular quantum dynamics. Examples from all main subjects in the field, presented by the internationally renowned experts, illustrate the importance of the domain. Recent success in helping to understand experimental observations in fields like heterogeneous catalysis, photochemistry, reactive scattering, optical spectroscopy, or femto- and attosecond chemistry and spectroscopy underline that nuclear quantum mechanical effects affect many areas of chemical and physical research. In contrast to standard quantum chemistry calculations, where the nuclei are treated classically, molecular quantum dynamics can cover quantum mechanical effects in their motion. Many examples, ranging from fundamental to applied problems, are known today that are impacted by nuclear quantum mechanical effects, including phenomena like tunneling, zero point energy effects, or non-adiabatic transitions. Being important to correctly understand many observations in chemical, organic and biological systems, or for the understanding of molecular spectroscopy, the range of applications covered in this book comprises broad areas of science: from astrophysics and the physics and chemistry of the atmosphere, over elementary processes in chemistry, to biological processes (such as the first steps of photosynthesis or vision). Nevertheless, many researchers refrain from entering this domain. The book "Molecular Quantum Dynamics" offers them an accessible introduction. Although the calculation of large systems still presents a challenge - despite the considerable power of modern computers - new strategies have been developed to extend the studies to systems of increasing size. Such strategies are presented after a brief overview of the historical background. Strong emphasis is put on an educational presentation of the fundamental concepts, so that the reader can inform himself about the most important concepts, like eigenstates, wave packets, quantum mechanical resonances, entanglement, etc. The chosen examples highlight that high-level experiments and theory need to work closely together. This book thus is a must-read both for researchers working experimentally or theoretically in the concerned fields, and generally for anyone interested in the exciting world of molecular quantum dynamics.

Medicinal Chemistry, Volume 14: Molecular Connectivity in Chemistry and Drug Research is a 10-chapter text that focuses on the molecular connectivity approach for quantitative evaluation of molecular structure of drugs. Molecular connectivity is a nonempirical derivation of numerical value that encode within them sufficient information to relate to many physicochemical and biological properties. This book outlines first the development of molecular connectivity approach, followed by considerable chapters on its application to evaluation of physicochemical properties of drugs. Other chapters explore the application of molecular connectivity to structure-activity studies in medicinal chemistry. The final chapters provide some reflections, challenges, and potential areas of investigation of molecular connectivity. Advanced undergraduate or graduate students in medicinal chemistry or pharmacology, practicing scientists, and theoretical chemists will find this book invaluable.