Conformations

Author : Alan E. Tonelli,Jialong Shen
Publisher : CRC Press
Page : 202 pages
File Size : 47,9 Mb
Release : 2020-04-06
Category : Science
ISBN : 9781351336215

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Conformations by Alan E. Tonelli,Jialong Shen Pdf

Among the materials found in Nature’s many diverse living organisms or produced by human industry, those made from polymers are dominant. In Nature, they are not only dominant, but they are, as well, uniquely necessary to life. Conformations: Connecting the Chemical Structures and Material Behaviors of Polymers explores how the detailed chemical structures of polymers can be characterized, how their microstructural-dependent conformational preferences can be evaluated, and how these conformational preferences can be connected to the behaviors and properties of their materials. The authors examine the connections between the microstructures of polymers and the rich variety of physical properties they evidence. Detailed polymer architectures, including the molecular bonding and geometries of backbone and side-chain groups, monomer stereo- and regiosequences, comonomer sequences, and branching, are explicitly considered in the analysis of the conformational characteristics of polymers. This valuable reference provides practicing materials engineers as well as polymer and materials science students a means of understanding the differences in behaviors and properties of materials made from chemically distinct polymers. This knowledge can assist the reader design polymers with chemical structures that lead to their desired material behaviors and properties.

Author : Glenn Sammis,Gregory Dake
Publisher : ORCA Workbooks Publishing
Page : 68 pages
File Size : 42,7 Mb
Release : 2024-06-26
Category : Science
ISBN : 9781777203634

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Organic Chemistry Workbook Series: Volume 4: Conformations by Glenn Sammis,Gregory Dake Pdf

The idea of conformation, or orientation of molecular shapes in space, is a fundamental concept in organic chemistry. Are you gauche enough to admit that you can’t tell a chair from a boat? This workbook, written by two award-winning instructors from the University of British Columbia, will help you identify and, more importantly, draw critical views and shapes such as the Newman projection, the anti and gauche conformations of alkanes and cyclohexane ring-flipping between one chair form and another. This workbook can be used in conjunction with any textbook.

Author : J. Laane,Marwan Dakkouri,Ben van der Veken,Heinz Oberhammer
Publisher : Springer Science & Business Media
Page : 640 pages
File Size : 53,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401120746

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Structures and Conformations of Non-Rigid Molecules by J. Laane,Marwan Dakkouri,Ben van der Veken,Heinz Oberhammer Pdf

From the beginnings of modern chemistry, molecular structure has been a lively area of research and speculation. For more than half a century spectroscopy and other methods have been available to characterize the structures and shapes of molecules, particularly those that are rigid. However, most molecules are at least to some degree non-rigid and this non-rigidity plays an important role in such diverse areas as biological activity, energy transfer, and chemical reactivity. In addition, the large-amplitude vibrations present in non-rigid molecules give rise to unusual low-energy vibrational level patterns which have a dramatic effect on the thermodynamic properties of these systems. Only in recent years has a coherent picture of the energetics and dynamics of the conformational changes inherent in non-rigid (and semi-rigid) molecules begun to emerge. Advances have been made in a number of different experimental areas: vibrational (infrared and Raman) spectroscopy, rotational (microwave) spectroscopy, electron diffraction, and, most recently, laser techniques probing both the ground and excited electronic states. Theoretically, the proliferation of powerful computers coupled with scientific insight has allowed both empirical and ab initio methods to increase our understanding of the forces responsible for the structures and energies of non-rigid systems. The development of theory (group theoretical methods and potential energy surfaces) to understand the unique characteristics of the spectra of these floppy molecules has also been necessary to reach our present level of understanding. The thirty chapters in this volume contributed by the key speakers at the Workshop are divided over the various areas. Both vibrational and rotational spectroscopy have been effective at determining the potential energy surfaces for non-rigid molecules, often in a complementary manner. Recent laser fluorescence work has extended these types of studies to electronic excited states. Electronic diffraction methods provide radial distribution functions from which both molecular structures and compositions of conformational mixtures can be found. Ab initio calculations have progressed substantially over the past few years, and, when carried out at a sufficiently high level, can accurately reproduce (or predict ahead of time) experimental findings. Much of the controversy of the ARW related to the question of when an ab initio is reliable. Since the computer programs are readily available, many poor calculations have been carried out. However, excellent results can be obtained from computations when properly done. A similar situation exists for experimental analyses. The complexities of non-rigid molecules are many, but major strides have been taken to understand their structures and conformational processes.

Author : Sijmen de Jong
Publisher : Unknown
Page : 188 pages
File Size : 46,5 Mb
Release : 1980
Category : Triglycerides
ISBN : UCAL:B2710851

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Triacylglycerol Crystal Structures and Fatty Acid Conformations by Sijmen de Jong Pdf

Author : Graham Patrick
Publisher : Taylor & Francis
Page : 297 pages
File Size : 46,8 Mb
Release : 2019-10-10
Category : Science
ISBN : 9780429524318

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BIOS Instant Notes in Medicinal Chemistry by Graham Patrick Pdf

Instant Notes in Medicinal Chemistry provides concise coverage for undergraduates studying medicinal chemistry as part of a science, pharmacy or medical course. It is a truly multidisciplinary subject involving such subject specialities as organic chemistry, pharmacology, biochemistry, physiology, microbiology, toxicology, genetics and computer mod

Author : Thomas Peters
Publisher : Springer
Page : 233 pages
File Size : 55,5 Mb
Release : 2009-11-04
Category : Science
ISBN : 9783540490807

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Bioactive Conformation II by Thomas Peters Pdf

This series presents critical reviews of the present position and future trends in modern chemical research. It contains short and concise reports on chemistry, each written by the world renowned experts. The volume is still valid and useful after five or ten years. More information, as well as the electronic version of the whole content, is available at: springerlink.com.

Author : Shahand Hojat Bakshandeh
Publisher : Unknown
Page : 142 pages
File Size : 42,7 Mb
Release : 1980
Category : Ketones
ISBN : UCLA:L0065426249

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Study of the Conformations of Geminally Disubstituted Cyclononanes by Shahand Hojat Bakshandeh Pdf

Author : P.M. Dean
Publisher : Springer Science & Business Media
Page : 358 pages
File Size : 51,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401113502

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Molecular Similarity in Drug Design by P.M. Dean Pdf

Molecular similarity searching is fast becoming a key tool in organic chemistry. In this book, the editor has brought together an international team of authors, each working at the forefront of this technology, providing a timely and concise overview of current research. The chapters focus principally on those methods which have reached sufficient maturity to be of immediate practical use in molecular design.

Author : Alan E. Tonelli,Jialong Shen
Publisher : CRC Press
Page : 237 pages
File Size : 44,9 Mb
Release : 2020-04-06
Category : Science
ISBN : 9781351336222

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Conformations by Alan E. Tonelli,Jialong Shen Pdf

Among the materials found in Nature’s many diverse living organisms or produced by human industry, those made from polymers are dominant. In Nature, they are not only dominant, but they are, as well, uniquely necessary to life. Conformations: Connecting the Chemical Structures and Material Behaviors of Polymers explores how the detailed chemical structures of polymers can be characterized, how their microstructural-dependent conformational preferences can be evaluated, and how these conformational preferences can be connected to the behaviors and properties of their materials. The authors examine the connections between the microstructures of polymers and the rich variety of physical properties they evidence. Detailed polymer architectures, including the molecular bonding and geometries of backbone and side-chain groups, monomer stereo- and regiosequences, comonomer sequences, and branching, are explicitly considered in the analysis of the conformational characteristics of polymers. This valuable reference provides practicing materials engineers as well as polymer and materials science students a means of understanding the differences in behaviors and properties of materials made from chemically distinct polymers. This knowledge can assist the reader design polymers with chemical structures that lead to their desired material behaviors and properties.

Author : SOLOMONS.,Craig B. Fryhle,Scott A. Snyder
Publisher : John Wiley & Sons
Page : 1235 pages
File Size : 46,5 Mb
Release : 2022-12-29
Category : Electronic
ISBN : 9781119889441

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Organic Chemistry by SOLOMONS.,Craig B. Fryhle,Scott A. Snyder Pdf

Author : Takashi Ohyama
Publisher : Springer Science & Business Media
Page : 228 pages
File Size : 50,7 Mb
Release : 2005-08-16
Category : Medical
ISBN : 0387255796

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DNA Conformation and Transcription by Takashi Ohyama Pdf

Despite remarkable progress in genome science, we are still far from a clear understanding of how genomic DNA is packaged without entanglement into a nucleus, how genes are wrapped up in chromatin, how chromatin structure is faithfully inherited from mother to daughter cells, and how the differential expression of genes is enabled in a given cell type. Exploring and answering these questions constitutes one of the next frontiers in the 21st century. We are just beginning to appreciate how Multifarious DNA structures provide additional structural and functional dimensions to chromatin organization and gene expression. DNA Conformation and Transcription is the first book that compiles the fruits of the studies that have been performed to date to solve the riddle ‘written’ in DNA conformation ("conformation code"). This book provides a comprehensive overview of the field by covering history of the field, up-to-date topics, clarifications of present day research, and future perspective of what is still to be discovered. Thus, it serves as an invaluable source of information on the "conformation code".

Author : Theodore Simos
Publisher : CRC Press
Page : 1600 pages
File Size : 40,7 Mb
Release : 2019-05-07
Category : Computers
ISBN : 9781466564510

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Recent Progress in Computational Sciences and Engineering (2 vols) by Theodore Simos Pdf

This volume brings together selected contributed papers presented at the International Conference of Computational Methods in Science and Engineering (ICCMSE 2006), held in Chania, Greece, October 2006. The conference aims to bring together computational scientists from several disciplines in order to share methods and ideas. The ICCMSE is unique in its kind. It regroups original contributions from all fields of the traditional Sciences, Mathematics, Physics, Chemistry, Biology, Medicine and all branches of Engineering. It would be perhaps more appropriate to define the ICCMSE as a conference on computational science and its applications to science and engineering. Topics of general interest are: Computational Mathematics, Theoretical Physics and Theoretical Chemistry. Computational Engineering and Mechanics, Computational Biology and Medicine, Computational Geosciences and Meteorology, Computational Economics and Finance, Scientific Computation. High Performance Computing, Parallel and Distributed Computing, Visualization, Problem Solving Environments, Numerical Algorithms, Modelling and Simulation of Complex System, Web-based Simulation and Computing, Grid-based Simulation and Computing, Fuzzy Logic, Hybrid Computational Methods, Data Mining, Information Retrieval and Virtual Reality, Reliable Computing, Image Processing, Computational Science and Education etc. More than 800 extended abstracts have been submitted for consideration for presentation in ICCMSE 2005. From these 500 have been selected after international peer review by at least two independent reviewers.

Author : Anonim
Publisher : World Scientific
Page : 776 pages
File Size : 50,7 Mb
Release : 1995
Category : Biological models
ISBN : 9789814531399

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Pacific Symposium on Biocomputing '96 by Anonim Pdf

"The first Pacific Symposium on Biocomputing (PSB), will be held January 3-6, 1996 at the Ritz Carlton Hotel on the Big Island of Hawaii. PSB will bring together top researchers from North America, the Asian Pacific nations, Europe, and around the world, to exchange research results and address open issues in all aspects of computational biology. Replacing and extending the last three years of Biotechnology Computing Tracks at the Hawaiian International Conference on System Sciences, PSB will provide a forum for the presentation of work in databases, algorithms, interfaces, visualization, modelling and other computational methods, as applied to biological problems, with emphasis on applications in data-rich areas of molecular biology. The PSB is focussed into 4 tracks, 4 minitracks, 2 workshops and includes two invited keynote speakers, viz., Logical Simulation of Biomolecular Information Pathways (Minoru Kanehisa, Kyoto Univ.) and CEX and the Single Chemist (David Weimger, DAYLIGHT Chemical Info. Syst.)"--Publisher's website.

Author : Anonim
Publisher : Academic Press
Page : 451 pages
File Size : 46,9 Mb
Release : 2013-01-17
Category : Science
ISBN : 9780123918727

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G Protein Coupled Receptors by Anonim Pdf

This new volume of Methods in Enzymology continues the legacy of this premier serial by containing quality chapters authored by leaders in the field. This volume covers G protein coupled receptors and includes chapters on such topics as post-translation modification of GPCR in relationship to biased agonism, structure-based virtual screening, and GPCR oligomerization in the brain. Continues the legacy of this premier serial with quality chapters authored by leaders in the field Covers G protein coupled receptors Contains chapters on such topics as post-translation modification of GPCR in relationship to biased agonism, structure-based virtual screening, and GPCR oligomerization in the brain

Author : Francis A. Carey,Richard J. Sundberg
Publisher : Springer Science & Business Media
Page : 822 pages
File Size : 53,6 Mb
Release : 2006-05-02
Category : Science
ISBN : 9780306468568

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Advanced Organic Chemistry by Francis A. Carey,Richard J. Sundberg Pdf

Since its original appearance in 1977, Advanced Organic Chemistry has found wide use as a text providing broad coverage of the structure, reactivity and synthesis of organic compounds. The Fourth Edition provides updated material but continues the essential elements of the previous edition. The material in Part A is organized on the basis of fundamental structural topics such as structure, stereochemistry, conformation and aromaticity and basic mechanistic types, including nucleophilic substitution, addition reactions, carbonyl chemistry, aromatic substitution and free radical reactions. The material in Part B is organized on the basis of reaction type with emphasis on reactions of importance in laboratory synthesis. As in the earlier editions, the text contains extensive references to both the primary and review literature and provides examples of data and reactions that illustrate and document the generalizations. While the text assumes completion of an introductory course in organic chemistry, it reviews the fundamental concepts for each topic that is discussed. The Fourth Edition updates certain topics that have advanced rapidly in the decade since the Third Edition was published, including computational chemistry, structural manifestations of aromaticity, enantioselective reactions and lanthanide catalysis. The two parts stand alone, although there is considerable cross-referencing. Part A emphasizes quantitative and qualitative description of structural effects on reactivity and mechanism. Part B emphasizes the most general and useful synthetic reactions. The focus is on the core of organic chemistry, but the information provided forms the foundation for future study and research in medicinal and pharmaceutical chemistry, biological chemistry and physical properties of organic compounds. The New Revised 5th Edition will be available shortly. For details, click on the link in the right-hand column.