Introduction To Core Modified Porphyrinoids Smaragdyrins Expanded Porphyrinoids And Corroles

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Introduction to Core Modified Porphyrinoids. Smaragdyrins, Expanded Porphyrinoids and Corroles

Author : Hemanta Kalita
Publisher : GRIN Verlag
ISBN 13 : 3346141152
Total Pages : 39 pages
Book Rating : 4.3/5 (461 download)

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Book Synopsis Introduction to Core Modified Porphyrinoids. Smaragdyrins, Expanded Porphyrinoids and Corroles by : Hemanta Kalita

Download or read book Introduction to Core Modified Porphyrinoids. Smaragdyrins, Expanded Porphyrinoids and Corroles written by Hemanta Kalita and published by GRIN Verlag. This book was released on 2020-04-01 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Document from the year 2020 in the subject Chemistry - Macromolecular Chemistry, Polymer Chemistry, grade: 2, , language: English, abstract: This work gives an overview over core modified Porphyrinoids. Specifically: Smaragdyrins, Expanded Porphyrinoids and Corroles. It does so by, in two chapters, defining each of the aforementioned chemical combinations ́ synthesis and characterization, properties and respective dyads. Smaragdyrin is a pentapyrrolic 22π-electron expanded porphyrin system bearing two direct pyrrole-pyrrole bonds. This macrocycle and its core modified derivative i.e. 25-oxasmaragdyrin have received upsurge interest in recent years due to their notable optical and electrochemical properties. Corroles are aromatic tetrapyrrolic macrocycles containing one meso carbon less compared to porphyrins and have one direct pyrrole-pyrrole linkage. This class of macrocycle possesses novel spectral, electrochemical and luminescence properties that can be exploited in material applications. In this book, we have discussed the synthesis, properties and their limited coordination chemistry of expanded porphyrinoid 25-oxasmaragdyrin and core-modified corroles. Corroles, on the other hand, are tetrapyrrolic contracted porphyrins, fully conjugated 18π electron macrocyles containing three methine bridges and one direct pyrrole-pyrrole linkage.

Expanded, Contracted & Isomeric Porphyrins

Author : Jonathan L. Sessler
Publisher : Pergamon Press
ISBN 13 : 9780080420929
Total Pages : 520 pages
Book Rating : 4.4/5 (29 download)

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Book Synopsis Expanded, Contracted & Isomeric Porphyrins by : Jonathan L. Sessler

Download or read book Expanded, Contracted & Isomeric Porphyrins written by Jonathan L. Sessler and published by Pergamon Press. This book was released on 1997 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter headings: Introduction. Contracted Porphyrins. Isomeric Porphyrins. Expanded Porphyrins Containing Four Pyrroles. Contracted Expanded Porphyrins: Sapphyrins and Smaragdyrins. Other Carbon-bridged Pentapyrrolic Systems. Carbon-linked Hexapyrrolic Systems and Heteroatom Analogues. Higher Order Systems. Nitrogen-Bridged Expanded Porphyrins. ApplicationsIntroduction -- Contracted porphyrins -- Isomeric porphyrins -- Expanded porphyrins containing four pyrroles -- Contracted expanded porphyrins: sapphyrins and smaragdyrins -- Other carbon-bridged pentapyrrolic systems -- Carbon-linked hexapyrrolic systems and heteroatom analogs -- Higher order systems -- Nitrogen-bridged expanded porphyrins -- Applications -- Index.

The Chemistry and Biology of Nitroxyl (HNO)

Author : Fabio Doctorovich
Publisher : Elsevier
ISBN 13 : 0128011645
Total Pages : 424 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis The Chemistry and Biology of Nitroxyl (HNO) by : Fabio Doctorovich

Download or read book The Chemistry and Biology of Nitroxyl (HNO) written by Fabio Doctorovich and published by Elsevier. This book was released on 2016-09-01 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chemistry and Biology of Nitroxyl (HNO) provides first-of-its-kind coverage of the intriguing biologically active molecule called nitroxyl, or azanone per IUPAC nomenclature, which has been traditionally elusive due to its intrinsically high reactivity. This useful resource provides the scientific basis to understand the chemistry, biology, and technical aspects needed to deal with HNO. Building on two decades of nitric oxide and nitroxyl research, the editors and authors have created an indispensable guide for investigators across a wide variety of areas of chemistry (inorganic, organic, organometallic, biochemistry, physical, and analytical); biology (molecular, cellular, physiological, and enzymology); pharmacy; and medicine. This book begins by exploring the unique molecule’s structure and reactivity, including important reactions with small molecules, thiols, porphyrins, and key proteins, before discussing chemical and biological sources of nitroxyl. Advanced chapters discuss methods for both trapping and detecting nitroxyl by spectroscopy, electrochemistry, and fluorescent inorganic cellular probing. Expanding on the compound’s foundational chemistry, this book then explores its molecular physiology to offer insight into its biological implications, pharmacological effects, and practical issues. Presents the first book on HNO (nitroxyl or azanone), an increasingly important molecule in biochemistry and pharmaceutical research Provides a valuable coverage of HNO’s chemical structure and significant reactions, including practical guidance on working with this highly reactive molecule Contains high quality content from recognized experts in both industry and academia

Expanded, Contracted & Isomeric Porphyrins

Author : J.L. Sessler
Publisher : Elsevier
ISBN 13 : 9780080535234
Total Pages : 519 pages
Book Rating : 4.5/5 (352 download)

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Book Synopsis Expanded, Contracted & Isomeric Porphyrins by : J.L. Sessler

Download or read book Expanded, Contracted & Isomeric Porphyrins written by J.L. Sessler and published by Elsevier. This book was released on 1997-08-21 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: The porphyrins are a class of naturally-occurring macrocycles and are ubiquitous in our world. As such, they have been called the Pigments of Life. This auspicious designation reflects their importance in numerous biological functions. Indeed, life as we understand it relies on the full range of biological processes that are either performed by or catalyzed by porphyrin-containing proteins. Chlorophyll-containing photosynthetic reaction centers in plants, for instance, convert light energy into chemical energy while producing oxygen along the way. It is this oxygen, evolved from photosynthesis, that is transported, stored, and reduced by heme-containing proteins in many organisms, including mammals. Not surprisingly, therefore, these molecules remain of fundamental interest to chemists and biochemists. Indeed, they continue to be intensely investigated by researchers world-wide. Inspired by the importance of the porphyrins, a new research direction has emerged in recent years that is devoted to the preparation and study of non-porphyrin polypyrrole macrocycles. Here, the principal objectives have been to generate completely synthetic systems that bear some structural resemblance to naturally-occurring porphyrin derivatives while being quite different in their specific chemical makeup. Within this context, three different research directions have evolved, namely those involving the syntheses of contracted, isomeric, and expanded porphyrins, respectively. It is the chemistry of these systems that is the subject of this book. Because of the newness of the field, the emphasis of this book will be on synthesis and characterization (all work on porphyrin isomers and much of that associated with expanded porphyrins has only appeared in the last 10 years). One chapter on applications has, however, been included. Also, in the context of the preparative portions of the text, some efforts have been made to explain why various porphyrin analogue targets are of interest.

Organic Syntheses Based on Name Reactions and Unnamed Reactions

Author : Alfred Hassner
Publisher : Elsevier
ISBN 13 : 1483287343
Total Pages : 452 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis Organic Syntheses Based on Name Reactions and Unnamed Reactions by : Alfred Hassner

Download or read book Organic Syntheses Based on Name Reactions and Unnamed Reactions written by Alfred Hassner and published by Elsevier. This book was released on 2013-10-22 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetically useful organic reactions or reagents are often referred to by the name of the discoverer(s) or developer(s). Older name reactions are described in text books, but more recently developed synthetically useful reactions that may have been associated occasionally with a name are not always well known. For neither of the above are experimental procedures or references easy to find. In this monograph approximately 500 name reactions are included, of which over 200 represent newer name reactions and modern reagents. Each of these reactions are extremely useful for the contemporary organic chemistry researcher in industry or academic institutions. This book provides the information in an easily accessible form. In addition to seminal references and reviews, one or more examples for each name reaction are provided and a complete typical experimental procedure is included, to enable the student or researcher to immediately evaluate reaction conditions. Besides an alphabetical listing of reactions and reagents, cross references permit the organic practitioner to find those name reactions or reagents that enable specific transformations, such as, conversion of amines to nitriles, stereoselective reduction, fluoroalkylation, phenol alkynylation, asymmetric syntheses, allylic alkylation, nucleoside synthesis, cyclopentanation, hydrozirconation, to name a few. Emphasis has been placed on stereoselective and regioselective transformations as well as on enantioselective processes. The listing of reactions and reagents is supported by four indexes.

Comprehensive Organometallic Chemistry III, Volume 3

Author : D. M. P. Mingos
Publisher :
ISBN 13 :
Total Pages : 976 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Comprehensive Organometallic Chemistry III, Volume 3 by : D. M. P. Mingos

Download or read book Comprehensive Organometallic Chemistry III, Volume 3 written by D. M. P. Mingos and published by . This book was released on 2007 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides essential information for any chemist or technologist who needs to use or apply organometallic compounds. Provides a comprehensive overview of recent developments in the field and attempts to predict trends in the field over the next ten years.

Comprehensive Natural Products III

Author :
Publisher : Elsevier
ISBN 13 : 0081026919
Total Pages : 4266 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Comprehensive Natural Products III by :

Download or read book Comprehensive Natural Products III written by and published by Elsevier. This book was released on 2020-07-22 with total page 4266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Natural Products III, Third Edition, Seven Volume Set updates and complements the previous two editions, including recent advances in cofactor chemistry, structural diversity of natural products and secondary metabolites, enzymes and enzyme mechanisms and new bioinformatics tools. Natural products research is a dynamic discipline at the intersection of chemistry and biology concerned with isolation, identification, structure elucidation, and chemical characteristics of naturally occurring compounds such as pheromones, carbohydrates, nucleic acids and enzymes. This book reviews the accumulated efforts of chemical and biological research to understand living organisms and their distinctive effects on health and medicine and to stimulate new ideas among the established natural products community. Provides readers with an in-depth review of current natural products research and a critical insight into the future direction of the field Bridges the gap in knowledge by covering developments in the field since the second edition published in 2010 Split into 7 sections on key topics to allow students, researchers and professionals to find relevant information quickly and easily Ensures that the knowledge within is easily understood by and applicable to a large audience

Photosensitizers in Medicine, Environment, and Security

Author : Tebello Nyokong
Publisher : Springer Science & Business Media
ISBN 13 : 9048138701
Total Pages : 672 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Photosensitizers in Medicine, Environment, and Security by : Tebello Nyokong

Download or read book Photosensitizers in Medicine, Environment, and Security written by Tebello Nyokong and published by Springer Science & Business Media. This book was released on 2012-01-03 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the synthesis of photosensitizers, the main emphasis being on the new methods of synthesis such as microwave, sonochemistry and the use of ionic liquids. It also addresses the photochemistry and photophysics of the photosensitizers alone and in combination with nanoparticles, the use of the photosensitizers in environmental control, safety and medicine. It discusses the common structures of the photosensitizers which are beneficial to these applications.

Comprehensive Heterocyclic Chemistry IV

Author : David St. Clair Black
Publisher :
ISBN 13 : 9780323912679
Total Pages : 0 pages
Book Rating : 4.9/5 (126 download)

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Book Synopsis Comprehensive Heterocyclic Chemistry IV by : David St. Clair Black

Download or read book Comprehensive Heterocyclic Chemistry IV written by David St. Clair Black and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Practical Aspects of Computational Chemistry

Author : Jerzy Leszczynski
Publisher : Springer Science & Business Media
ISBN 13 : 9048126878
Total Pages : 465 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Practical Aspects of Computational Chemistry by : Jerzy Leszczynski

Download or read book Practical Aspects of Computational Chemistry written by Jerzy Leszczynski and published by Springer Science & Business Media. This book was released on 2009-10-03 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Practical Aspects of Computational Chemistry" presents contributions on a range of aspects of Computational Chemistry applied to a variety of research fields. The chapters focus on recent theoretical developments which have been used to investigate structures and properties of large systems with minimal computational resources. Studies include those in the gas phase, various solvents, various aspects of computational multiscale modeling, Monte Carlo simulations, chirality, the multiple minima problem for protein folding, the nature of binding in different species and dihydrogen bonds, carbon nanotubes and hydrogen storage, adsorption and decomposition of organophosphorus compounds, X-ray crystallography, proton transfer, structure-activity relationships, a description of the REACH programs of the European Union for chemical regulatory purposes, reactions of nucleic acid bases with endogenous and exogenous reactive oxygen species and different aspects of nucleic acid bases, base pairs and base tetrads.

Direct Synthesis of Metal Complexes

Author : B.I. Kharisov
Publisher : Elsevier
ISBN 13 : 0128110627
Total Pages : 468 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Direct Synthesis of Metal Complexes by : B.I. Kharisov

Download or read book Direct Synthesis of Metal Complexes written by B.I. Kharisov and published by Elsevier. This book was released on 2018-04-19 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct Synthesis of Metal Complexes provides in-depth coverage of the direct synthesis of coordination and organometallic compounds. The work is primarily organized by methods, but also covers highly relevant complexes, such as metal-polymer coordination compounds. This updated reference discusses recent developments in cryosynthesis, electrosynthesis, and tribosynthesis (popular as it doesn’t require organic solvents), with special attention paid to ‘greener’ methodologies and approaches. Additionally, the book describes physical methods of zero-valent metal interaction with organic matter, including sputtering, ultrasonic treatment and synthesis in ionic liquids. The book presents completely new content as a follow-up to the 1999 Elsevier Science publication Direct Synthesis of Coordination and Organometallic Compounds that was edited by Dr. Garnovskii and Dr. Kharisov. Covers current methods and techniques of metal interactions with organic media leading to metal chelates, adducts, di- and polymetallic complexes, metal-containing macrocycles, supported coordination compounds (i.e., metal complexes on carbon nanotubes), and more Describes reactivities of distinct forms of elemental metals (powders, sheets, nanoparticles (including a host of less-common metal nanostructures) with organic phase (liquid, solid and gaseous) and water Includes experimental procedures, with examples of direct synthesis, at the end of each chapter

Comprehensive Organic Synthesis

Author :
Publisher : Newnes
ISBN 13 : 008097743X
Total Pages : 9815 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Comprehensive Organic Synthesis by :

Download or read book Comprehensive Organic Synthesis written by and published by Newnes. This book was released on 2014-02-14 with total page 9815 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of Comprehensive Organic Synthesis—winner of the 2015 PROSE Award for Multivolume Reference/Science from the Association of American Publishers—builds upon the highly respected first edition in drawing together the new common themes that underlie the many disparate areas of organic chemistry. These themes support effective and efficient synthetic strategies, thus providing a comprehensive overview of this important discipline. Fully revised and updated, this new set forms an essential reference work for all those seeking information on the solution of synthetic problems, whether they are experienced practitioners or chemists whose major interests lie outside organic synthesis. In addition, synthetic chemists requiring the essential facts in new areas, as well as students completely new to the field, will find Comprehensive Organic Synthesis, Second Edition, Nine Volume Set an invaluable source, providing an authoritative overview of core concepts. Winner of the 2015 PROSE Award for Multivolume Reference/Science from the Association of American Publishers Contains more than170 articles across nine volumes, including detailed analysis of core topics such as bonds, oxidation, and reduction Includes more than10,000 schemes and images Fully revised and updated; important growth areas—including combinatorial chemistry, new technological, industrial, and green chemistry developments—are covered extensively

Peptide, Protein and Enzyme Design

Author :
Publisher : Academic Press
ISBN 13 : 0128054344
Total Pages : 684 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Peptide, Protein and Enzyme Design by :

Download or read book Peptide, Protein and Enzyme Design written by and published by Academic Press. This book was released on 2016-08-27 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: De Novo Enzyme Design, the newest volume in the Methods in Enzymology series, continues the legacy of this premier serial with quality chapters authored by leaders in the field. This volume includes the design of metal binding maquettes, insertion of non-natural cofactors, Cu metallopeptides, non-covalent interactions in peptide assemblies, peptide binding and bundling, heteronuclear metalloenzymes, florinated peptides, De Novo imaging agents, and protein-protein interaction. Continues the legacy of this premier serial with quality chapters on de novo enzyme design Represents the newest volume in the Methods in Enzymology series, providing premier, quality chapters authored by leaders in the field Ideal reference for those interested in the study of enzyme design that looks at both structure and mechanism

Contemporary Aspects of Boron: Chemistry and Biological Applications

Author : Hijazi Abu Ali
Publisher : Elsevier
ISBN 13 : 9780080457734
Total Pages : 630 pages
Book Rating : 4.4/5 (577 download)

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Book Synopsis Contemporary Aspects of Boron: Chemistry and Biological Applications by : Hijazi Abu Ali

Download or read book Contemporary Aspects of Boron: Chemistry and Biological Applications written by Hijazi Abu Ali and published by Elsevier. This book was released on 2005-09-07 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contemporary Aspects of Boron: Chemistry and Biological Applications highlights the biological activity and applications of boron containing compounds. The authors’ specific approach surveys general features of the subject, while exploring new and novel strategies for preparing certain chemical and natural boron products that are of significant substance in medicinal chemistry. For example, cancer treatment is one of the most important issues related to such products. In addition to contributing to the development of new drugs by addressing biological applications in medicinal and industrial fields, the book provides a comprehensive review of the most relevant components that comprise the pharmaceutical, medicinal and environmental applications of boron containing compounds. * Timely and comprehensive * Provides new insights to active researchers in the field * Presents concepts and methods in simple scientific terms

Diradicaloids

Author : Jishan Wu
Publisher : CRC Press
ISBN 13 : 1000565254
Total Pages : 638 pages
Book Rating : 4.0/5 (5 download)

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Book Synopsis Diradicaloids by : Jishan Wu

Download or read book Diradicaloids written by Jishan Wu and published by CRC Press. This book was released on 2022-04-01 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: π-Conjugated molecules with an even number of π-electrons usually have a closed-shell ground state. However, recent studies have demonstrated that a certain type of molecules could show open-shell singlet ground state and display diradical-like (diradicaloid) behavior. Their electronic structure can be understood in terms of the “diradical character” and “aromaticity” concepts. They display very different electronic properties from traditional closed-shell π-conjugated molecules and could be used as next-generation molecular materials. This book provides a comprehensive review on the chemistry, physics, and material applications of open-shell singlet diradicaloids. Particularly, it elaborates the fundamental structure–diradical character–electronic property relationships both theoretically and experimentally. The book has been written by leading scientists in the field from Japan, Germany, Spain, Italy, China, and Singapore.

The Porphyrins

Author : David Dolphin
Publisher :
ISBN 13 :
Total Pages : 472 pages
Book Rating : 4.3/5 (97 download)

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Book Synopsis The Porphyrins by : David Dolphin

Download or read book The Porphyrins written by David Dolphin and published by . This book was released on 1978 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Computational Photochemistry

Author : Massimo Olivucci
Publisher : Elsevier
ISBN 13 : 0080455190
Total Pages : 369 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Computational Photochemistry by : Massimo Olivucci

Download or read book Computational Photochemistry written by Massimo Olivucci and published by Elsevier. This book was released on 2005-10-20 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Photochemistry, Volume 16 provides an overview of general strategies currently used to investigate photochemical processes. Whilst contributing to establishing a branch of computational chemistry that deals with the properties and reactivity of photoexcited molecules, the book also provides insight into the conceptual and methodological research lines in computational photochemistry. Packed with examples of applications of modelling of basic photochemical reactions and the computer-aided development of novel materials in the field of photodegradation (paints), photoprotection (sunscreens), color regulation (photochromic devices) and fluorescent probes, this book is particularly useful to anyone interested in the effect of light on molecules and materials. * Provides an overview of computational photochemistry, dealing with principles and applications* Demonstrates techniques that can be used in the computer-aided design of novel photo responsive materials* Written by experts in computational photochemistry