Interactions and Dynamics of Small Molecules in Liquid Mixtures

Interactions and Dynamics of Small Molecules in Liquid Mixtures PDF Author: Helena Kovács
Publisher:
ISBN:
Category : Kinetic theory of liquids
Languages : en
Pages : 206

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Interactions and Dynamics of Small Molecules in Liquid Mixtures

Interactions and Dynamics of Small Molecules in Liquid Mixtures PDF Author: Helena Kovács
Publisher:
ISBN:
Category : Kinetic theory of liquids
Languages : en
Pages : 206

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Book Description


Gulliver in the Country of Lilliput

Gulliver in the Country of Lilliput PDF Author: Ilya G. Shenderovich
Publisher: MDPI
ISBN: 3036504303
Category : Science
Languages : en
Pages : 216

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Book Description
Noncovalent interactions are the bridge between ideal gas abstraction and the real world. For a long time, they were covered by two terms: van der Waals interactions and hydrogen bonding. Both experimental and quantum chemical studies have contributed to our understanding of the nature of these interactions. In the last decade, great progress has been made in identifying, quantifying, and visualizing noncovalent interactions. New types of interactions have been classified—their energetic and spatial properties have been tabulated. In the past, most studies were limited to analyzing the single strongest interaction in the molecular system under consideration, which is responsible for the most important structural properties of the system. Despite this limitation, such an approach often results in satisfactory approximations of experimental data. However, this requires knowledge of the structure of the molecular system and the absence of other competing interactions. The current challenge is to go beyond this limitation. This Special Issue collects ideas on how to study the interplay of noncovalent interactions in complex molecular systems including the effects of cooperation and anti-cooperation, solvation, reaction field, steric hindrance, intermolecular dynamics, and other weak but numerous impacts on molecular conformation, chemical reactivity, and condensed matter structure.

Coarse-Graining of Condensed Phase and Biomolecular Systems

Coarse-Graining of Condensed Phase and Biomolecular Systems PDF Author: Gregory A. Voth
Publisher: CRC Press
ISBN: 1420059564
Category : Science
Languages : en
Pages : 492

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Book Description
Exploring recent developments in the field, Coarse-Graining of Condensed Phase and Biomolecular Systems examines systematic ways of constructing coarse-grained representations for complex systems. It explains how this approach can be used in the simulation and modeling of condensed phase and biomolecular systems. Assembling some of the most influential, world-renowned researchers in the field, this book covers the latest developments in the coarse-grained molecular dynamics simulation and modeling of condensed phase and biomolecular systems. Each chapter focuses on specific examples of evolving coarse-graining methodologies and presents results for a variety of complex systems. The contributors discuss the minimalist, inversion, and multiscale approaches to coarse-graining, along with the emerging challenges of coarse-graining. They also connect atomic-level information with new coarse-grained representations of complex systems, such as lipid bilayers, proteins, peptides, and DNA.

NMR Methods for Characterization of Synthetic and Natural Polymers

NMR Methods for Characterization of Synthetic and Natural Polymers PDF Author: Rongchun Zhang
Publisher: Royal Society of Chemistry
ISBN: 178801863X
Category : Science
Languages : en
Pages : 590

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Book Description
Since the introduction of FT-NMR spectroscopy around five decades ago, NMR has achieved significant advances in hardware and methodologies, accompanied with the enhancement of spectral resolution and signal sensitivity. Rapid developments in the polymers field mean that accurate and quantitative characterization of polymer structures and dynamics is the keystone for precisely regulating and controlling the physical and chemical properties of the polymer. This book specifically focuses on NMR investigation of complex polymers for the polymer community as well as NMR spectroscopists, and will push the development of both fields. It covers the latest advances, for example high field DNP and ultrafast MAS methodologies, and show how these novel NMR methods characterize various synthetic and natural polymers.

The Nature of the Hydrogen Bond

The Nature of the Hydrogen Bond PDF Author: Gastone Gilli
Publisher: OUP Oxford
ISBN: 0191580279
Category : Science
Languages : en
Pages : 330

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Book Description
Hydrogen bond (H-bond) effects are known: it makes sea water liquid, joins cellulose microfibrils in trees, shapes DNA into genes and polypeptide chains into wool, hair, muscles or enzymes. Its true nature is less known and we may still wonder why O-H...O bond energies range from less than 1 to more than 30 kcal/mol without apparent reason. This H-bond puzzle is re-examined here from its very beginning and presented as an inclusive compilation of experimental H-bond energies and geometries. New concepts emerge from this analysis: new classes of systematically strong H-bonds (CAHBs and RAHBs: charge- and resonance-assisted H-bonds); full H-bond classification in six classes (the six chemical leitmotifs); and assessment of the covalent nature of strong H-bonds. This leads to three distinct but inter-consistent models able to rationalize the H-bond and predict its strength, based on classical VB theory, matching of donor-acceptor acid-base parameters (PA or pKa), or shape of the H-bond proton-transfer pathway. Applications survey a number of systems where strong H-bonds play an important functional role, namely drug-receptor binding, enzymatic catalysis, ion-transport through cell membranes, crystal design and molecular mechanisms of functional materials.

Hierarchical Methods for Dynamics in Complex Molecular Systems

Hierarchical Methods for Dynamics in Complex Molecular Systems PDF Author: Johannes Grotendorst
Publisher: Forschungszentrum Jülich
ISBN: 3893367683
Category :
Languages : en
Pages : 557

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Molten Salts XIV

Molten Salts XIV PDF Author: R. A. Mantz
Publisher: The Electrochemical Society
ISBN: 9781566775144
Category : Science
Languages : en
Pages : 1118

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Molecular Dynamics Simulation

Molecular Dynamics Simulation PDF Author: Giovanni Ciccotti
Publisher: MDPI
ISBN: 3906980650
Category : Science
Languages : en
Pages : 627

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Book Description
Printed Edition of the Special Issue Published in Entropy

Protein Conformational Dynamics

Protein Conformational Dynamics PDF Author: Ke-li Han
Publisher: Springer Science & Business Media
ISBN: 3319029703
Category : Medical
Languages : en
Pages : 488

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Book Description
This book discusses how biological molecules exert their function and regulate biological processes, with a clear focus on how conformational dynamics of proteins are critical in this respect. In the last decade, the advancements in computational biology, nuclear magnetic resonance including paramagnetic relaxation enhancement, and fluorescence-based ensemble/single-molecule techniques have shown that biological molecules (proteins, DNAs and RNAs) fluctuate under equilibrium conditions. The conformational and energetic spaces that these fluctuations explore likely contain active conformations that are critical for their function. More interestingly, these fluctuations can respond actively to external cues, which introduces layers of tight regulation on the biological processes that they dictate. A growing number of studies have suggested that conformational dynamics of proteins govern their role in regulating biological functions, examples of this regulation can be found in signal transduction, molecular recognition, apoptosis, protein / ion / other molecules translocation and gene expression. On the experimental side, the technical advances have offered deep insights into the conformational motions of a number of proteins. These studies greatly enrich our knowledge of the interplay between structure and function. On the theoretical side, novel approaches and detailed computational simulations have provided powerful tools in the study of enzyme catalysis, protein / drug design, protein / ion / other molecule translocation and protein folding/aggregation, to name but a few. This work contains detailed information, not only on the conformational motions of biological systems, but also on the potential governing forces of conformational dynamics (transient interactions, chemical and physical origins, thermodynamic properties). New developments in computational simulations will greatly enhance our understanding of how these molecules function in various biological events.

Computational Pharmaceutical Solid State Chemistry

Computational Pharmaceutical Solid State Chemistry PDF Author: Yuriy A. Abramov
Publisher: John Wiley & Sons
ISBN: 1118700740
Category : Science
Languages : en
Pages : 450

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Book Description
This book is the first to combine computational material science and modeling of molecular solid states for pharmaceutical industry applications. • Provides descriptive and applied state-of-the-art computational approaches and workflows to guide pharmaceutical solid state chemistry experiments and to support/troubleshoot API solid state selection • Includes real industrial case examples related to application of modeling methods in problem solving • Useful as a supplementary reference/text for undergraduate, graduate and postgraduate students in computational chemistry, pharmaceutical and biotech sciences, and materials science