Spectroscopy and Computation of Hydrogen-BondedSystems

Spectroscopy and Computation of Hydrogen-BondedSystems PDF Author: Marek J. Wójcik
Publisher: John Wiley & Sons
ISBN: 3527349723
Category : Science
Languages : en
Pages : 548

Get Book Here

Book Description
Comprehensive spectroscopic view of the state-of the-art in theoretical and experimental hydrogen bonding research Spectroscopy and Computation of Hydrogen-Bonded Systems includes diverse research efforts spanning the frontiers of hydrogen bonding as revealed through state-of-the-art spectroscopic and computational methods, covering a broad range of experimental and theoretical methodologies used to investigate and understand hydrogen bonding. The work explores the key quantitative relationships between fundamental vibrational frequencies and hydrogen-bond length/strength and provides an extensive reference for the advancement of scientific knowledge on hydrogen-bonded systems. Theoretical models of vibrational landscapes in hydrogen-bonded systems, as well as kindred studies designed to interpret intricate spectral features in gaseous complexes, liquids, crystals, ices, polymers, and nanocomposites, serve to elucidate the provenance of spectroscopic findings. Results of experimental and theoretical studies on multidimensional proton transfer are also presented. Edited by two highly qualified researchers in the field, sample topics covered in Spectroscopy and Computation of Hydrogen-Bonded Systems include: Quantum-mechanical treatments of tunneling-mediated pathways in enzyme catalysis and molecular-dynamics simulations of structure and dynamics in hydrogen-bonded systems Mechanisms of multiple proton-transfer pathways in hydrogen-bonded clusters and modern spectroscopic tools with synergistic quantum-chemical analyses Mechanistic investigations of deuterium kinetic isotope effects, ab initio path integral methods, and molecular-dynamics simulations Key relationships that exist between fundamental vibrational frequencies and hydrogen-bond length/strength Analogous spectroscopic and semi-empirical computational techniques examining larger hydrogen-bonded systems Reflecting the polymorphic nature of hydrogen bonding and bringing together the latest experimental and computational work in the field, Spectroscopy and Computation of Hydrogen-Bonded Systems is an essential resource for chemists and other scientists involved in projects or research that intersects with the topics covered within.

Spectroscopy and Computation of Hydrogen-BondedSystems

Spectroscopy and Computation of Hydrogen-BondedSystems PDF Author: Marek J. Wójcik
Publisher: John Wiley & Sons
ISBN: 3527349723
Category : Science
Languages : en
Pages : 548

Get Book Here

Book Description
Comprehensive spectroscopic view of the state-of the-art in theoretical and experimental hydrogen bonding research Spectroscopy and Computation of Hydrogen-Bonded Systems includes diverse research efforts spanning the frontiers of hydrogen bonding as revealed through state-of-the-art spectroscopic and computational methods, covering a broad range of experimental and theoretical methodologies used to investigate and understand hydrogen bonding. The work explores the key quantitative relationships between fundamental vibrational frequencies and hydrogen-bond length/strength and provides an extensive reference for the advancement of scientific knowledge on hydrogen-bonded systems. Theoretical models of vibrational landscapes in hydrogen-bonded systems, as well as kindred studies designed to interpret intricate spectral features in gaseous complexes, liquids, crystals, ices, polymers, and nanocomposites, serve to elucidate the provenance of spectroscopic findings. Results of experimental and theoretical studies on multidimensional proton transfer are also presented. Edited by two highly qualified researchers in the field, sample topics covered in Spectroscopy and Computation of Hydrogen-Bonded Systems include: Quantum-mechanical treatments of tunneling-mediated pathways in enzyme catalysis and molecular-dynamics simulations of structure and dynamics in hydrogen-bonded systems Mechanisms of multiple proton-transfer pathways in hydrogen-bonded clusters and modern spectroscopic tools with synergistic quantum-chemical analyses Mechanistic investigations of deuterium kinetic isotope effects, ab initio path integral methods, and molecular-dynamics simulations Key relationships that exist between fundamental vibrational frequencies and hydrogen-bond length/strength Analogous spectroscopic and semi-empirical computational techniques examining larger hydrogen-bonded systems Reflecting the polymorphic nature of hydrogen bonding and bringing together the latest experimental and computational work in the field, Spectroscopy and Computation of Hydrogen-Bonded Systems is an essential resource for chemists and other scientists involved in projects or research that intersects with the topics covered within.

Computational studies of RNA and DNA

Computational studies of RNA and DNA PDF Author: Jirí Šponer
Publisher: Springer Science & Business Media
ISBN: 1402048513
Category : Science
Languages : en
Pages : 638

Get Book Here

Book Description
This book integrates modern computational studies of nucleic acids, ranging from advanced electronic structure quantum chemical calculations through explicit solvent molecular dynamics (MD) simulations up to mesoscopic modelling, with the main focus given to the MD field. It gives an equal emphasis to the leading methods and applications while successes as well as pitfalls of the computational techniques are discussed.

The Weak Hydrogen Bond

The Weak Hydrogen Bond PDF Author: Gautam R. Desiraju
Publisher: International Union of Crystal
ISBN: 9780198509707
Category : Hydrogen bonding
Languages : en
Pages : 530

Get Book Here

Book Description
The weak or non-conventional hydrogen bond has been subject of intense scrutiny over recent years in several fields, in particular in structural chemistry, structural biology, and also in the pharmaceutical sciences. There is today a large body of experimental and theoretical evidenceconfirming that hydrogen bonds like C-H...O, N-H...pi, C-H...pi and even bonds like O-H...metal play distinctive roles in molecular recognition, guiding molecular association, and in determining molecular and supramolecular architectures. The relevant compound classes include organometalliccomplexes, organic and bio-organic systems, and also DNA and proteins. The book provides a comprehensive assessment of this interaction type, and is of interest to all those interested in structural and supramolecular science, including fields as crystal engineering and drug design.

Conical Intersections

Conical Intersections PDF Author: Wolfgang Domcke
Publisher: World Scientific
ISBN: 9812386726
Category : Science
Languages : en
Pages : 857

Get Book Here

Book Description
This invaluable book presents a systematic exposition of the current state of knowledge about conical intersections, which has been elaborated in research papers scattered throughout the chemical physics literature.

Computational Studies

Computational Studies PDF Author: Ambrish Kumar Srivastava
Publisher: CRC Press
ISBN: 1040099815
Category : Science
Languages : en
Pages : 293

Get Book Here

Book Description
The book covers a diverse range of topics based on computational studies, including modeling and simulations based on quantum chemical studies and molecular dynamics (MD) simulations. It contains quantum chemical studies on several molecules, including biologically relevant molecules and liquid crystals and various aspects of superatomic clusters including superalkalis and superhalogens. It gives an overview of MD simulations and their applications on biomolecular systems such as HIV-1 protease and integrase. Features: Includes first principle methods, density functional theory, as well as molecular dynamics simulations. Explores quantum chemical studies on several molecules. Gives readers an overview of the power of computation. Discusses superatomic clusters, superalkalis, and superhalogens. Covers themes from molecules, clusters, materials, as well as biophysical systems. This book is aimed at researchers and graduate students in materials science and computational and theoretical chemistry.

Computational Methods for the Description of Intermolecular Interactions and Molecular Motion in Confining Environments

Computational Methods for the Description of Intermolecular Interactions and Molecular Motion in Confining Environments PDF Author: Heribert Reis
Publisher: Frontiers Media SA
ISBN: 2889764109
Category : Science
Languages : en
Pages : 130

Get Book Here

Book Description


Computational study on medicinally important antibiotics

Computational study on medicinally important antibiotics PDF Author: Rajeshwar Rao Bojja
Publisher: Blue Rose Publishers
ISBN:
Category : Science
Languages : en
Pages : 396

Get Book Here

Book Description
Quantum chemistry uses the Schrödinger equation to predict properties of molecules and their course in chemical reactions. From the 1920 to 1960s, it handled the complicated mathematical equations of quantum mechanics for molecules. Now, it can solve complicated problems through computer technology. It also makes real-time calculations with new concepts and simplifications. Novel approaches will be needed in quantum chemistry to promote research field beyond a set of techniques available in computer programs for showing many pressing problems of humanity. Currently, it is available to everyone to use popular free chemistry software packages. First generate new ideas to explore and produce truly novel results with their capabilities. Since 1960, remarkable advances are observed in the development and availability of computers for making all-important contributions to the solutions of critical problems in chemistry. One of the most challenges in chemistry is the prediction of the folded structure of peptide and protein synthesis in different chemical environments. It is highly interdisciplinary field of research, linking biology and biochemistry fields, like analytical, inorganic, organic, medicinal, physical, pharmaceutical and theoretical chemistry.

Hydrogen Bonding in Organic Synthesis

Hydrogen Bonding in Organic Synthesis PDF Author: Petri M. Pihko
Publisher: John Wiley & Sons
ISBN: 3527627855
Category : Science
Languages : en
Pages : 395

Get Book Here

Book Description
This first comprehensive overview of the rapidly growing field emphasizes the use of hydrogen bonding as a tool for organic synthesis, especially catalysis. As such, it covers such topics as enzyme chemistry, organocatalysis and total synthesis, all unified by the unique advantages of hydrogen bonding in the construction of complex molecules from simple precursors. Providing everything you need to know, this is a definite must for every synthetic chemist in academia and industry.

Computational Organic Chemistry

Computational Organic Chemistry PDF Author: Steven M. Bachrach
Publisher: John Wiley & Sons
ISBN: 1118291921
Category : Science
Languages : en
Pages : 653

Get Book Here

Book Description
The Second Edition demonstrates how computational chemistry continues to shed new light on organic chemistry The Second Edition of author Steven Bachrach’s highly acclaimed Computational Organic Chemistry reflects the tremendous advances in computational methods since the publication of the First Edition, explaining how these advances have shaped our current understanding of organic chemistry. Readers familiar with the First Edition will discover new and revised material in all chapters, including new case studies and examples. There’s also a new chapter dedicated to computational enzymology that demonstrates how principles of quantum mechanics applied to organic reactions can be extended to biological systems. Computational Organic Chemistry covers a broad range of problems and challenges in organic chemistry where computational chemistry has played a significant role in developing new theories or where it has provided additional evidence to support experimentally derived insights. Readers do not have to be experts in quantum mechanics. The first chapter of the book introduces all of the major theoretical concepts and definitions of quantum mechanics followed by a chapter dedicated to computed spectral properties and structure identification. Next, the book covers: Fundamentals of organic chemistry Pericyclic reactions Diradicals and carbenes Organic reactions of anions Solution-phase organic chemistry Organic reaction dynamics The final chapter offers new computational approaches to understand enzymes. The book features interviews with preeminent computational chemists, underscoring the role of collaboration in developing new science. Three of these interviews are new to this edition. Readers interested in exploring individual topics in greater depth should turn to the book’s ancillary website www.comporgchem.com, which offers updates and supporting information. Plus, every cited article that is available in electronic form is listed with a link to the article.

Single Crystal Neutron Diffraction from Molecular Materials

Single Crystal Neutron Diffraction from Molecular Materials PDF Author: Chick C. Wilson
Publisher: World Scientific
ISBN: 9789810237769
Category : Science
Languages : en
Pages : 390

Get Book Here

Book Description
This important book presents a comprehensive account of the techniques & applications of single crystal neutron diffraction in the area of chemical crystallography & molecular structure. Beginning with a brief description of the general principles & the reasons for choosing the technique - the "why" - the book covers the methods for both the production of neutrons & the measurement of their scattering by molecular crystals - the "how" - followed by a detailed survey of past, present & future applications - the "what". The coverage of both steady state & pulsed neutron sources & instrumentation is extensive, while the survey of applications is the most comprehensive yet undertaken. The book endeavours to show why the technique is an essential method for studying areas as diverse as hydrogen bonding & weak interactions, organometallics, supramolecular chemistry & crystal engineering, metal hydrides, charge density & pharmaceuticals. It is an ideal reference source for the research worker interested in using neutron diffraction to study the structure of molecules. Contents: Crystallography & the Importance of Structural Information; Neutron Scattering; Neutron Diffractometers; Review of Applications I: The Accurate Location of Atoms; Review of Applications II: Hydrogen Bonding & Other Intermolecular Interactions; Review of Applications III: Probing Vibrations & Disorder; Impact on Material Properties & Design; The Future: New Instruments, New Sources, New Techniques. Readership: Students & researchers involved in structural science, especially chemical crystallography.