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The Hydrogen Bond And The Water Molecule

Author: Yves Marechal
Publisher: Elsevier
ISBN: 9780080469294
Size: 55.18 MB
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The Hydrogen Bond and the Water Molecule offers a synthesis of what is known and currently being researched on the topic of hydrogen bonds and water molecules. The most simple water molecular, H2O, is a fascinating but poorly understood molecule. Its unique ability to attract an exceptionally large number of hydrogen bonds induces the formation of a dense "hydrogen bond network" that has the potential to modify the properties of the surrounding molecules and their reactivities. The crucial role that water molecules play is described in this book. The author begins by providing an overview of the thermodynamical and structural properties of H-bonds before examining their much less known dynamical properties, which makes them appear as centres of reactivity. Methods used to observe these components are also reviewed. In the second part of the book the role played by the dense H-bond network developed by H2O molecules is examined. First in ice, where it has important atmospheric consequences, then in liquid water, and finally in macromolecules where it sheds some original light on the fundamental question "How is it that without water and hydrogen bonds life would not exist?". This book will be of interest to researchers in the fields of physics, chemistry, biochemistry and molecular biology. It can also serve as a teaching aid for students attending course in chemical physics, chemistry or molecular biology. Engineers involved the water industry would benefit from reading this book, as would scientists working in pharmaceutics, cosmetics and materials. * overview of what is known and being researched on the topic of hydrogen bonds and water molecules * reviews methods used to observe interactions between water molecules and hydrogen bonds * examines role of H-bond network developed by H2O molecules

The Nature Of The Hydrogen Bond

Author: Gastone Gilli
Publisher: Oxford University Press
ISBN: 0199558965
Size: 75.34 MB
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This book defines, for the first time, the rules for predicting H-bond energies and geometries from the properties of the interacting molecules. This new knowledge is used to investigate the molecular mechanisms in systems relevant to chemistry, biochemistry, pharmacology, crystallography, and material sciences.

Transport And Reactivity Of Solutions In Confined Hydrosystems

Author: Lionel Mercury
Publisher: Springer
ISBN: 9400775342
Size: 14.98 MB
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The present work reflects a multi-disciplinary effort to address the topic of confined hydrosystems developed with a cross-fertilization panel of physics, chemists, biologists, soil and earth scientists. Confined hydrosystems include all situations in natural settings wherein the extent of the liquid phase is limited so that the solid-liquid and/or liquid-air interfaces may be critical to the properties of the whole system. Primarily, this so-called “residual” solution is occluded in pores/channels in such a way that decreases its tendency to evaporation, and makes it long-lasting in arid (Earth deserts) and hyper-arid (Mars soils) areas. The associated physics is available from domains like capillarity, adsorption and wetting, and surface forces. However, many processes are still to understand due to the close relationship between local structure and matter properties, the subtle interplay between the host and the guest, the complex intermingling among static reactivity and migration pathway. Expert contributors from Israel, Russia, Europe and US discuss the behaviour of water and aqueous solutes at different scale, from the nanometric range of carbon nanotubes and nanofluidics to the regional scale of aquifers reactive flow in sedimentary basins. This scientific scope allowed the group of participants with very different background to tackle the confinement topic at different scales. The book is organized according to four sections that include: i) flow, from nano- to mega-scale; ii) ions, hydration and transport; iii) in-pores/channels cavitation; iv) crystallization under confinement. Most of contributions relates to experimental works at different resolution, interpreted through classic thermodynamics and intermolecular forces. Simulation techniques are used to explore the atomic scale of interfaces and the migration in the thinnest angstrom-wide channels.

Water

Author: Denis Le Bihan
Publisher: Pan Stanford Publishing
ISBN: 981430316X
Size: 23.95 MB
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The main objective of this book is to bring together multidisciplinary contributions from leading authorities on the properties and roles of water in cell systems which are otherwise dispersed in the literature and difficult to gather. The authors are drawn from areas of physics, chemistry, biology and physiology, where water plays a central role. The book focuses on current research and developments in the theoretical and experimental studies of water in biological systems and compounds, such as interaction with hydrophobic or hydrophilic structures, protein and membrane surfaces. It provides insights into the importance of water in cellular processes and physiology and, ultimately, in life, brain function, and health.

Hydrogen Bond Networks

Author: Marie-Claire Bellisent-Funel
Publisher: Springer Science & Business Media
ISBN: 9401583323
Size: 30.63 MB
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The almost universal presence of water in our everyday lives and the very `common' nature of its presence and properties possibly deflects attention from the fact that it has a number of very unusual characteristics which, furthermore, are found to be extremely sensitive to physical parameters, chemical environment and other influences. Hydrogen-bonding effects, too, are not restricted to water, so it is necessary to investigate other systems as well, in order to understand the characteristics in a wider context. Hydrogen Bond Networks reflects the diversity and relevance of water in subjects ranging from the fundamentals of condensed matter physics, through aspects of chemical reactivity to structure and function in biological systems.

Hydrogen Bonding And Transfer In The Excited State

Author: Ke-Li Han
Publisher: John Wiley & Sons
ISBN: 9781119972921
Size: 55.26 MB
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This book gives an extensive description of the state-of-the-art in research on excited-state hydrogen bonding and hydrogen transfer in recent years. Initial chapters present both the experimental and theoretical investigations on the excited-state hydrogen bonding structures and dynamics of many organic and biological chromophores. Following this, several chapters describe the influences of the excited-state hydrogen bonding on various photophysical processes and photochemical reactions, for example: hydrogen bonding effects on fluorescence emission behaviors and photoisomerization; the role of hydrogen bonding in photosynthetic water splitting; photoinduced electron transfer and solvation dynamics in room temperature ionic liquids; and hydrogen bonding barrier crossing dynamics at bio-mimicking surfaces. Finally, the book examines experimental and theoretical studies on the nature and control of excited-state hydrogen transfer in various systems. Hydrogen Bonding and Transfer in the Excited State is an essential overview of this increasingly important field of study, surveying the entire field over 2 volumes, 40 chapters and 1200 pages. It will find a place on the bookshelves of researchers in photochemistry, photobiology, photophysics, physical chemistry and chemical physics.

Water In Biological And Chemical Processes

Author: Biman Bagchi
Publisher: Cambridge University Press
ISBN: 1107037298
Size: 51.41 MB
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A unified overview of the dynamical properties of water and its unique and diverse role in biological and chemical processes.

Intermolecular Forces

Author: Pierre L. Huyskens
Publisher: Springer Science & Business Media
ISBN: 3642762603
Size: 35.43 MB
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The study of intermolecular forces began over one hundred years ago in 1873 with the famous thesis of van der Waals. In recent decades, knowledge of this field has expanded due to intensive research into both its theoretical and the experimental aspects. This is particularly true for the type of very strong cohesive force stressed in 1920 by Latimer and Rodebush: the hydrogen bond, a phenomenon already outlined in 1912 by Moore and Winemill. Hydrogen bonds exert a profound influence on most of the physical and chemical properties of the materials in which they are formed. Not only do they govern viscosity and electrical conductivity, they also intervene in the chemical reaction path which determines the kinetics of chemical processes. The properties of chemical substances depend to a large extent on intermolecular forces. In spite of this fundamental fact, too little attention is given to these properties both in research and in university teaching. For instance, in the field of pharmaceutical research, about 13000 compounds need to be studied in order to find a single new product that can be successfully marketed. The recognition of the need to optimize industrial research efficiency has led to a growing interest in promoting the study of inter molecular forces. Rising salary costs in industry have encou raged an interest in theoretical ideas which will lead to tailor made materials.

Wonders Of Water The Hydrogen Bond In Action

Author: Olovsson Ivar
Publisher: World Scientific
ISBN: 9813229136
Size: 75.93 MB
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The book presents the fantastic world of water in all its different forms, from liquid to ice and snow. This book is amply illustrated with a large number of beautiful pictures with. Water plays a unique role in chemistry. The special properties of water are due to hydrogen bonding between the H2O molecules. The hydrogen bond is of fundamental importance in biological systems since all living matter has evolved from and exists in an aqueous environment, and hydrogen bonds are involved in most biological processes. There is a hundred times more water molecules in our bodies than the sum of all the other molecules put together. The unique properties of water are of great importance in our daily life. The origin of these special properties is often not recognized. Even among chemists and physicists, the fundamental facts are not always known. In spite of very active research, there are still many questions to be answered about the structure of liquid water, for instance. The book differs from most books on water as it covers basic facts about structure and properties as well as the influence of these properties in our daily life. Why does ice float on water? Why is the maximum density of water at 4°C? The beauty of snow crystals is amply illustrated, and many of the pictures are unique. Contents: Early Snow Crystal ObservationsArtificially Grown Snow CrystalsTwins, Snowflakes and HailFormation of RainPictures of Snow and Ice Crystals in NatureSnow for Pleasure and ArtThe Ice Surface and Formation of Ice SpikesIce as Aircraft Carrier and Project HabakkukStructure of Water and IcePhysical Properties and Significance in NatureWater, a Solvent with Many Interesting PropertiesWhy is Water Blue?Electron Microscopic Studies of Snow CrystalsIce in Lakes and GlaciersHydrates of Methane, Carbon Dioxide and ChlorineEffects Connected with the Release of MethanePolyhedra Formed by Water, Carbon and HydrocarbonsThe Platonic SolidsMysteries of WaterEscher's Waterfall and the Impossible TriangleMemory of WaterJacques BenvenisteHomeopathyMasaru EmotoCan Warm Water Freeze Faster than Cold Water?Mpemba Effects in Our Daily LifeHot-Water Pipes Break on Freezing While Cold Ones Do Not!The Hydrogen BondThe Role of the Lone-Pair Electrons on the Acceptor AtomThe Hydrated ProtonWater in Biological SystemsWater Transport in TreesTransformations of Our Earth by Water and IceIce AgesGiant's Kettles, PotholesThe Story of Döda Fallet (The 'Dead Fall')The Rain BowThe Physical Origin of the RainbowTeoderick's Rainbow ExperimentPrimary and Secondary RainbowsThe Water Molecule is Unique Readership: Interested lay readers. Keywords: Water;Hydrogen Bond;Ice;Snow;Gas Hydrates;Mysteries of Water;Mpemba Effect;RainbowReview:0