Spectroscopy and Computation of Hydrogen-BondedSystems

Spectroscopy and Computation of Hydrogen-BondedSystems

Author: Marek J. Wójcik

Publisher: John Wiley & Sons

Published: 2023-03-27

Total Pages: 548

ISBN-13: 3527349723

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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.


Vibrational Spectroscopy of Hydrogen Bonded Species

Vibrational Spectroscopy of Hydrogen Bonded Species

Author: Glen A. Hopkins

Publisher:

Published: 1984

Total Pages: 286

ISBN-13:

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Due to its importance, the phenomenon of hydrogen bonding has been the subject of much research over the years. Among the different techniques used to study hydrogen bonded systems, vibrational spectroscopy is perhaps the most sensitive because of the striking changes induced in molecular spectra by the formation of hydrogen bonds. Since comparable changes can also be caused by solvation effects in condensed phases, the most useful characterization of the potential energy surface for hydrogen atom motion can only be obtained from gas phase studies of simple model compounds. The molecule chosen in this study was hydrogen cyanide, a system known to form aggregate molecules in the gas phase.


Analysis and Control of Ultrafast Photoinduced Reactions

Analysis and Control of Ultrafast Photoinduced Reactions

Author: Oliver Kühn

Publisher: Springer Science & Business Media

Published: 2007-07-05

Total Pages: 854

ISBN-13: 3540680381

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This book summarizes several years of research carried out by a collaboration of many groups on ultrafast photochemical reactions. It emphasizes the analysis and characterization of the nuclear dynamics within molecular systems in various environments induced by optical excitations and the study of the resulting molecular dynamics by further interaction with an optical field.


Visualization of Hydrogen-Bond Dynamics

Visualization of Hydrogen-Bond Dynamics

Author: Takashi Kumagai

Publisher: Springer Science & Business Media

Published: 2012-09-02

Total Pages: 139

ISBN-13: 443154156X

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The hydrogen bond represents an important interaction between molecules, and the dynamics of hydrogen bonds in water create an ever-present question associated with the process of chemical and biological reactions. In spite of numerous studies, the process remains poorly understood at the microscopic level because hydrogen-bond dynamics, such as bond rearrangements and hydrogen/proton transfer reactions, are extremely difficult to probe. Those studies have been carried out by means of spectroscopic methods where the signal stems from the ensemble of a system and the hydrogen-bond dynamics were inferred indirectly. This book addresses the direct imaging of hydrogen-bond dynamics within water-based model systems assembled on a metal surface, using a scanning tunneling microscope (STM). The dynamics of individual hydrogen bonds in water clusters, hydroxyl clusters, and water-hydroxyl complexes are investigated in conjunction with density functional theory. In these model systems, quantum dynamics of hydrogen bonds, such as tunneling and zero-point nuclear motion, are observed in real space. Most notably, hydrogen atom relay reactions, which are frequently invoked across many fields of chemistry, are visualized and controlled by STM. This work presents a means of studying hydrogen-bond dynamics at the single-molecule level, providing an important contribution to wide fields beyond surface chemistry.


Hydrogen-Bonded Liquids

Hydrogen-Bonded Liquids

Author: J.C. Dore

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 439

ISBN-13: 9401132747

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The study of liquids covers a wide range of scientific disciplines, primarily in physics and chemistry. As a result of this disparate activity the links between new developments in remote fields are seldom co-ordinated into a single conference. The objective of the present meeting was to gather together people with different forms of expertise. Previous ASI meetings on the liquid state have been held over an extended period and have occurred on a three-yearly basis. The first meeting in this series was on 'Structure and Dynamics of Liquids' in 1980 and was held on the island of Corsica. The next meeting on 'Molecular liquids: Dynamics and Interactions' was held in Florence in 1983 and was followed by 'Aqueous Solutions' at the Institut d'Etudes Scientifiques de Cargese in 1986. It therefore seemed a natural choice to select Cargese for the next meeting in 1989 and to choose a topic which emphasised a particular area of liquid state studies. Due to our own involvement in collaborative research we considered that 'Hydrogen-bonded liquids' would be an appropriate topic. One of its attractions, was that there was much new material coming from widely disparate investigations and it would be a convenient time to draw together the different strands. The particular interest in water was clearly central to this topic but it was thought desirable to set this development in the wider context of other systems in which hydrogen-bonding plays a significant role.