From Chemical Topology To Three Dimensional Geometry

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From Chemical Topology To Three Dimensional Geometry

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Author : Alexandru T. Balaban
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-04-11

From Chemical Topology To Three Dimensional Geometry written by Alexandru T. Balaban and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-04-11 with Science categories.

Even high-speed supercomputers cannot easily convert traditional two-dimensional databases from chemical topology into the three-dimensional ones demanded by today's chemists, particularly those working in drug design. This fascinating volume resolves this problem by positing mathematical and topological models which greatly expand the capabilities of chemical graph theory. The authors examine QSAR and molecular similarity studies, the relationship between the sequence of amino acids and the less familiar secondary and tertiary protein structures, and new topological methods.

Advances In Dendritic Macromolecules

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Author : G.R. Newkome
language : en
Publisher: Elsevier
Release Date : 1999-08-31

Advances In Dendritic Macromolecules written by G.R. Newkome and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-08-31 with Science categories.

The series Advances in Dendritic Macromolecules aims to cover the synthesis and supramolecular chemistry of dendritic or cascade super-molecules as well as their less perfect hyperbranched cousins.The field of hyperbranched macromolecules, specifically dendrimers, has continued to expand at an amazing rate. The synthetic aspects, which were assumed to be over several years ago, have opened new avenues into the mesomolecular regime. The synthetic ingenuity of chemical artists has afforded new monomers and their diverse combinations to give rise to (poly)functionalized materials that embrace new supramolecular concepts in areas such as molecular recognition, assembly, encapsulation, and inclusion; catalysts; coatings; drug delivery systems; and in essence opens up the field of suprasupermolecular chemistry.In chapter 1 the synthesis of organometallic and related transition metal-cotaining dendrimers is summarized and their novel properties and useful applications are described. Chapter 2 covers work on the commercial poly(propylene imine)s, including the "dendritic box", dendrimer-based superamphiphiles, and unimolecular inverse micelles. The next chapter looks at aspects of chirality in dendritic systems and this is followed by a look inside dendrimers from a molecular topologist's point-of-view.

Solved And Unsolved Problems Of Structural Chemistry

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Author : Milan Randic
language : en
Publisher: CRC Press
Release Date : 2016-04-21

Solved And Unsolved Problems Of Structural Chemistry written by Milan Randic and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-21 with Mathematics categories.

Solved and Unsolved Problems of Structural Chemistry introduces new methods and approaches for solving problems related to molecular structure. It includes numerous subjects such as aromaticity-one of the central themes of chemistry-and topics from bioinformatics such as graphical and numerical characterization of DNA, proteins, and proteomes. It a

Chemical Topology

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Author : D Bonchev
language : en
Publisher: CRC Press
Release Date : 1999-04-23

Chemical Topology written by D Bonchev and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-04-23 with Science categories.

Topology is becoming increasingly important in chemistry because of its rapidly growing number of applications. Here, its many uses are reviewed and the authors anticipate what future developments might bring. This work shows how significant new insights can be gained by representing molecular species as topological structures known as topographs. The text explores carbon structures, establishing how the stability of fullerene species can be accounted for and also predicting which fullerenes will be most stable. It is pointed out that molecular topology, rather than molecular geometry, characterizes molecular shape and various tools for shape characterization are described. Several of the fascinating ideas that arise from regarding topology as a unifying principle in chemical bonding theory are discussed, and in particular, the novel concept of the molecular topoid is shown to have numerous uses. The topological description of polymers is examined and the reader is gently guided through the realms of branched and tangled polymers. Overall, this work outlines the fact that topology is not only a theoretical discipline but also one that has practical applications and high relevance to the whole domain of chemistry.

Handbook Of Molecular Descriptors

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Author : Roberto Todeschini
language : en
Publisher: John Wiley & Sons
Release Date : 2008-07-11

Handbook Of Molecular Descriptors written by Roberto Todeschini and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-07-11 with Science categories.

Quantitative studies on structure-activity and structure-property relationships are powerful tools in directed drug research. In recent years, various strategies have been developed to characterize and classify structural patterns by means of molecular descriptors. It has become possible not only to assess diversities or similarities of structure databases, but molecular descriptors also facilitate the identification of potential bioactive molecules from the rapidly increasing number of compound libraries. They even allow for a controlled de-novo design of new lead structures. This is the most comprehensive collection of molecular descriptors and presents a detailed review from the origins of this research field up to present day. This practically oriented reference book gives a thorough overview of the different molecular descriptors representations and their corresponding molecular descriptors. All descriptors are listed with their definition, symbols and labels, formulas, some numerical examples, data and molecular graphs, while numerous figures and tables aid comprehension of the definitions. Cross-references throughout, a list of acronyms and notations allow easy access to the information needed to solve a specific research problem. Examples of descriptor calculations along with tables of descriptor values for a set of selected reference compounds and an up-to-date reference list add to the practical value of the book, making it an invaluable guide for all those dealing with bioactive molecules as well as for researchers.

Topological Indices And Related Descriptors In Qsar And Qspr

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Author : James Devillers
language : en
Publisher: CRC Press
Release Date : 2000-03-09

Topological Indices And Related Descriptors In Qsar And Qspr written by James Devillers and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-03-09 with Mathematics categories.

Topological Indices and Related Descriptors in QSAR and QSPR reviews the state of the art in this field and highlights the important advances in the generation of descriptors calculated directly from the structure of molecules. This long-awaited comprehensive book provides all the necessary information to calculate and use these descriptors for deriving structure-activity and structure-property relationships. Written by leading experts in the field, this book discusses the physicochemical significance, strengths, and weaknesses of these indices and presents numerous examples of applications. This book will be a valuable reference for anyone involved in the use of QSAR and QSPR in the pharmaceutical, applied chemical, and environmental sciences. It is also suitable for use as a supplementary textbook on related graduate level courses.

Molecular Descriptors For Chemoinformatics

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Author : Roberto Todeschini
language : en
Publisher: John Wiley & Sons
Release Date : 2009-10-30

Molecular Descriptors For Chemoinformatics written by Roberto Todeschini and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-10-30 with Science categories.

The number-one reference on the topic now contains a wealth of new data: The entire relevant literature over the past six years has been painstakingly surveyed, resulting in hundreds of new descriptors being added to the list, and some 3,000 new references in the bibliography section. Volume 1 contains an alphabetical listing of more than 3300 descriptors and related terms for chemoinformatic analysis of chemical compound properties, while the second volume lists over 6,000 references selected from 450 journals. To make the data even more accessible, the introductory section has been completely re-written and now contains several "walk-through" reading lists of selected keywords for novice users.

Topology In Chemistry

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Author : D H Rouvray
language : en
Publisher: Elsevier
Release Date : 2002-04-01

Topology In Chemistry written by D H Rouvray and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-04-01 with Science categories.

This volume addresses a number of topological themes of direct relevance to chemists. Topological concepts are now regularly applied in wide areas of chemistry including molecular engineering and design, chemical toxicology, the study of molecular shape, crystal and surface structures, chemical bonding, macromolecular species such as polymers and DNA, and environmental chemistry. Currently, the design and synthesis of new drugs and agrochemicals are of especial importance. The book's prime focus is on the role played by topological indices in the description and characterisation of molecular species. The Wiener index along with a variety of other major topological indices, are discussed with particular reference to the powerful and much used connectivity indices. In this book an international team of leading experts review their respective fields and present their findings.The considerable benefits offered by topological indices in the investigation of chemical problems in science, medicine, and industry are highlighted. The volume records proceedings of the Harry Wiener Memorial Conference on the Role of Topology in Chemistry, held at the University of Georgia in March 2001, and serves as a fitting tribute to the chemical contributions of the late Harry Wiener. - Focuses on the role played by topological indices in the description and characterisation of molecular species - Records the proceedings of the Harry Weiner Memorial Conference on the Role of Topology in Chemistry, held at the University of Georgia in March 2001 - Along with a variety of other major topological indices, the Wiener index is discussed with particular reference to the powerful and much-used connectivity indices

Mathematical Descriptors Of Molecules And Biomolecules

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Author : Subhash C. Basak
language : en
Publisher: Springer Nature
Release Date : 2024-09-02

Mathematical Descriptors Of Molecules And Biomolecules written by Subhash C. Basak and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-09-02 with Science categories.

This book provides an up-to-date overview of data driven and evidence-based empirical approaches in the efficient application of chemodescriptors and biodescriptors. Currently there is a steady increase in the use of data analytics and model-based decision support systems in basic and applied research in chemoinformatics, bioinformatics, pharmaceutical drug design, predictive toxicology, and computational biology. Since there are a plethora of modeling methods and a large number of chemodescriptors and biodescriptors available today, robust statistical and machine learning methods are applied throughout. In addition, the development of statistically robust predictive models in rank deficient cases using chemodescrip tors and biodescriptors is discussed. Readers are provided with an up-to-date overview of the theoretical background, calculation methods, and proper use of chemodescriptors and biodescriptors in model building, with special emphasis on computer-assisted organic synthesis, new drug discovery, hazard assessment of chemicals, and computational biology of emerging global pathogens. The book also discusses the applications of alignment-free sequence descriptors (AFSDs) in vaccine design and the characterization of emerging global pathogens such as the Zika virus and SARS-CoV-2. The utility of molecular fragment-based descriptors in building useful quantitative structure-activity relationship (Q)SAR) models is detailed as is the use of mathematical structural descriptors in chemical synthesis planning.

Comprehensive Coordination Chemistry Ii

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Author : J. A. McCleverty
language : en
Publisher: Newnes
Release Date : 2003-12-03

Comprehensive Coordination Chemistry Ii written by J. A. McCleverty and has been published by Newnes this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-12-03 with Science categories.

Comprehensive Coordination Chemistry II (CCC II) is the sequel to what has become a classic in the field, Comprehensive Coordination Chemistry, published in 1987. CCC II builds on the first and surveys new developments authoritatively in over 200 newly comissioned chapters, with an emphasis on current trends in biology, materials science and other areas of contemporary scientific interest.