Contemporary Computer-Assisted Approaches to Molecular Structure Elucidation
Contemporary Computer-Assisted Approaches to Molecular Structure Elucidation

Author: Mikhail E Elyashberg

Publisher: Royal Society of Chemistry

Published: 2015-11-09

Total Pages: 505

ISBN-13: 1782625763

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Computer-Assisted Structure Elucidation (CASE) systems are a combination of software algorithms and tools to support and enable chemists and spectroscopists engaged in the process of molecular structure elucidation via the analysis of spectroscopic data. These expert systems dramatically reduce the time associated with structure elucidation and improve the reliability of the results. Contemporary Computer-Assisted Approaches to Molecular Structure Elucidation describes the principles on which these expert systems for spectroscopic structure elucidation are based and concisely explains the algorithmic concepts behind the programs. The authors use their own personal experiences in the development of the Structure Elucidator (StrucEluc) CASE software system to discuss the present state-of-the-art in computer-assisted structure elucidation. Scientists that are presently using CASE systems will be interested in the algorithms and modern approaches and for organizations that are currently using the StrucEluc platform the book is designed to help researchers understand the strategies behind CASE as well as details regarding the StrucEluc platform. For scientists that have never used CASE systems they will now have access to all necessary information to understand CASE systems for mastering this new and very effective approach to structure elucidation. The authors overall goal is writing this book is to produce the 'must read' definitive text that will represent the results of decades of work to develop computer-assisted structure elucidation software systems. CASE systems are now powerful software tools commonly outperforming and correcting human interpretations of data. This book will also provide an historical perspective of the work of the founding fathers of the technique and identify the challenges that have been overcome to produce modern CASE systems.

Computer–Based Structure Elucidation from Spectral Data
Computer–Based Structure Elucidation from Spectral Data

Author: Mikhail E. Elyashberg

Publisher: Springer

Published: 2015-02-27

Total Pages: 458

ISBN-13: 3662464020

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Here, the authors introduce readers to solving molecular structure elucidation problems using the expert system ACD/Structure Elucidator. They explain in detail the concepts of the Computer-Assisted Structure Elucidation (CASE) approach and point out the crucial role of understanding the axiomatic nature of the data used to deduce the structure. Aspects covered include the main blocks of the expert system and essential features of the mathematical algorithms used. Graduate and PhD students as well as practicing chemists are provided with a detailed explanation of the various practical approaches depending on available spectral data peculiarities and the complexity of the unknown structure. This is supported by a large number of real-world completed examples, most of which are related to the structure elucidation of natural product molecules containing unusual skeletons. Dedicated software and further supplementary material are available at www.acdlabs.com/TeachingSE.

Anthropic Awareness
Anthropic Awareness

Author: Csaba Szantay Jr.

Publisher: Elsevier

Published: 2015-06-25

Total Pages: 465

ISBN-13: 0124199798

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Anthropic Awareness: The Human Aspects of Scientific Thinking in NMR Spectroscopy and Mass Spectrometry blends psychology, philosophy, physics, mathematics, and chemistry, describing a human-centered philosophy of the essence of scientific thinking in the natural sciences and in everyday life. It addresses the reasons why we are prone to make errors in our conclusions and how to avoid such mistakes, also exploring a number of the "mental traps" that can lead to both individual mistakes and mass misconceptions. The book advocates that by understanding the nature of these mental traps we can adopt tactics to safely evade them. It includes Illustrative examples of common scientific misunderstandings and mental traps in both the theory and real-life application of NMR spectroscopy and mass spectrometry. Provides strategies on how to deal with molecular challenges and instrument limitations Presents multiple applications of small molecule structure elucidation using NMR, MS, IR, and UV Explores critical topics, including anthropic awareness (AA), NMR Spectroscopy, mass spectrometry, scientific thinking, and more Includes tactics on how to Improve quality control and data interpretation skills while minimizing data analysis time and increasing confidence in results Presents coverage on tactics to optimize experimental NMR parameters and enhance NMR vocabulary

Computer-Based Structure Elucidation from Spectral Data
Computer-Based Structure Elucidation from Spectral Data

Author: Mikhail E. Elyashberg

Publisher:

Published: 2015

Total Pages:

ISBN-13: 9783662464038

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Here, the authors introduce readers to solving molecular structure elucidation problems using the expert system ACD/Structure Elucidator. They explain in detail the concepts of the Computer-Assisted Structure Elucidation (CASE) approach and point out the crucial role of understanding the axiomatic nature of the data used to deduce the structure. Aspects covered include the main blocks of the expert system and essential features of the mathematical algorithms used. Graduate and PhD students as well as practicing chemists are provided with a detailed explanation of the various practical approaches depending on available spectral data peculiarities and the complexity of the unknown structure. This is supported by a large number of real-world completed examples, most of which are related to the structure elucidation of natural product molecules containing unusual skeletons. Dedicated software and further supplementary material are available at www.acdlabs.com/TeachingSE.

Encyclopedia of Analytical Science
Encyclopedia of Analytical Science

Author:

Publisher: Elsevier

Published: 2019-04-02

Total Pages: 5142

ISBN-13: 008101984X

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The third edition of the Encyclopedia of Analytical Science, Ten Volume Set is a definitive collection of articles covering the latest technologies in application areas such as medicine, environmental science, food science and geology. Meticulously organized, clearly written and fully interdisciplinary, the Encyclopedia of Analytical Science, Ten Volume Set provides foundational knowledge across the scope of modern analytical chemistry, linking fundamental topics with the latest methodologies. Articles will cover three broad areas: analytical techniques (e.g., mass spectrometry, liquid chromatography, atomic spectrometry); areas of application (e.g., forensic, environmental and clinical); and analytes (e.g., arsenic, nucleic acids and polycyclic aromatic hydrocarbons), providing a one-stop resource for analytical scientists. Offers readers a one-stop resource with access to information across the entire scope of modern analytical science Presents articles split into three broad areas: analytical techniques, areas of application and and analytes, creating an ideal resource for students, researchers and professionals Provides concise and accessible information that is ideal for non-specialists and readers from undergraduate levels and higher

Modern NMR Approaches to the Structure Elucidation of Natural Products
Modern NMR Approaches to the Structure Elucidation of Natural Products

Author: Antony Williams

Publisher: Royal Society of Chemistry

Published: 2016-12-14

Total Pages: 532

ISBN-13: 1849733937

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The Ghanian plant Cryptolepis sanguinolenta is the source of a series of fascinating indoloquinoline alkaloids. The most unusual member of this alkaloid series was initially proposed to be a spiro nonacyclic structure, named cryptospirolepine, and was elucidated in 1993 based on the technologies available at that time. There were, however, several annoying attributes to the structure that bothered analysts for the ensuing 22 years. During the two decades that followed the initial work there have been enormous developments in NMR technology. Using new experimental approaches, specifically homodecoupled 1,1- and 1,n-HD-ADEQUATE NMR experiments developed in 2014, the structure of only a 700 µg sample of cryptospirolepine has been revised and is shown on the cover of this volume. The confluence of the NMR technological and methodological advances that allowed the revision of the structure of cryptospirolepine using a submilligram sample seems a fitting example for this book, which is dedicated to the NMR characterization of various classes of natural products. Volume 2 considers data processing and algorithmic based analyses tailored to natural product structure elucidation and reviews the application of NMR to the analysis of a series of different natural product families including marine natural products, terpenes, steroids, alkaloids and carbohydrates. Volume 1 discusses contemporary NMR approaches including optimized and future hardware and experimental approaches to obtain both the highest quality and most appropriate spectral data for analysis. These books, bringing together acknowledged experts, uniquely focus on the combination of experimental approaches and modern hardware and software applied to the structure elucidation of natural products. The volumes will be an essential resource for NMR spectroscopists, natural product chemists and industrial researchers working on natural product analysis or the characterization of impurities and degradation products of pharmaceuticals that can be as scarce as natural product samples.

Artificial Intelligence in Chemistry
Artificial Intelligence in Chemistry

Author: Z. Hippe

Publisher: Elsevier

Published: 2013-10-22

Total Pages: 292

ISBN-13: 1483291677

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This comprehensive overview of the application of artificial intelligence methods (AI) in chemistry contains an in-depth summary of the most interesting achievements of modern AI, namely, problem-solving in molecular structure elucidation and in syntheses design. The book provides a brief history of AI as a branch of computer science. It also gives an overview of the basic methods employed for searching the solution space (thoroughly exemplified by chemical problems), together with a profound and expert discussion on many questions that may be raised by modern chemists wishing to apply computer-assisted methods in their own research. Moreover, it includes a survey of the most important literature references, covering all essential research in automated interpretation of molecular spectra to elucidate a structure and in syntheses design. A glossary of basic terms from computer technology for chemists is appended. This book is intended to make the emerging field of artificial intelligence understandable and accessible for chemists, who are not trained in computer methods for solving chemical problems. The author discusses step-by-step basic algorithms for structure elucidation and many aspects of the automated design of organic syntheses in order to integrate this fascinating technology into current chemical knowledge.