Crown Ethers And Cryptands
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Crown Ethers And Cryptands
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Author : George W. Gokel
language : en
Publisher:
Release Date : 1991
Crown Ethers And Cryptands written by George W. Gokel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Science categories.
This book introduces the broad and basic principles of crown ether and cryptand chemistry at the advanced undergraduate, graduate and working professional level.
Cryptands And Cryptates
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Author : Fabbrizzi Luigi
language : en
Publisher: World Scientific
Release Date : 2017-11-08
Cryptands And Cryptates written by Fabbrizzi Luigi and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-08 with Science categories.
Cryptands were introduced by Jean-Marie Lehn in 1969 as cage-shaped selective ligands for alkali and alkaline-earth metal ions, which lie at the heart of supramolecular chemistry. This book reports on much of the research in the field since the '70s, and looks at, amongst other topics, metal coordination chemistry, anion coordination chemistry, the encapsulation and taming of reactive anions, the formation of cascade complexes and the design of fluorescent sensors for ionic analytes. Cryptands and Cryptates has been written as a coursebook, structured as a series of lectures for graduate students or advanced researchers in chemistry, materials science, chemical biology and nanotechnology. It is fully illustrated to show experiments and results, and is intended to stimulate further interest in this fertile field of supramolecular chemistry. Chapters are preceded by a Foreword by Jean-Marie Lehn. Contents: The Beginning of the Story: Crown EthersThe Birth of Cryptands and CryptatesRecognition of the Radius of s-Block Metal Ions by CryptandsCompetitive Hosts for Alkali Metal Ions: Spherands and DerivativesThe Coordination Chemisty of Ammonium and OxoniumThe Age of Anion Coordination ChemistryThe Appearance of Bistren CryptandsBistren Cryptands Grow and MultiplyThe Formation of Dicopper(II) Bistren Cryptates and the Nature of Their Cavity Anion Recognition by Dicopper(II) Bistren Cryptates: The Geometrical FactorAnion Fluorescence Sensing by Dimetallic Bistren Cryptates: The Fluorophore–Spacer–Receptor ParadigmAnion Fluorescence Sensing by Dimetallic Bistren Cryptates: The Indicator Displacement ParadigmNucleotide Recognition and Sensing by a Dicopper(II) Bistren CryptateAnion Inclusion by Hexaprotonated Bistrens: HalidesAnion Inclusion by Hexaprotonated Bistrens: OxoanionsRecognition of Linear Dicarboxylates: The Hydrogen Bonding vs Metal–Ligand Interactions ContestBistren Amides: Neutral Receptors That Recognise Anions Only Through Hydrogen Bonding InteractionsThe Taming of Peroxide (By a Bistren Amide Cryptand)Coordination Chemistry of the Smallest Bistren CryptandSize Exclusion Selectivity: The Case of FluoridePseudo-Cryptands: Closing the Receptor's Cavity with a Transition MetalUse of Cryptands to Make Automatic Molecular BurettesCages in Everyday Life, Chemistry and Art Readership: Graduate students or advanced researchers in chemistry, materials science, chemical biology and nanotechnology. Keywords: Supramolecular Chemistry;Coordination Chemistry of Alkali Metal Ions;Transition Metal Coordination Chemistry;Anion Coordination Chemistry;Crown Ethers;Cryptands;Bistren Cryptands;Recognition of Anions and of Metal Ions;Fluorescent Sensing of Anions and Metal Ions;Encapsulation of Reactive AnionsReview: Key Features: While review articles have been published on partial aspects of this topic, no books have been devoted to an overall and homogeneous treatment of 'cryptands and cryptates'
Crown Ethers And Analogous Compounds
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Author : M. Hiraoka
language : en
Publisher: Elsevier
Release Date : 2016-05-04
Crown Ethers And Analogous Compounds written by M. Hiraoka and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-05-04 with Science categories.
Since the discovery of crown ethers by Pedersen in 1967, several thousands of crown ethers and analogous compounds have been synthesized. Their specific characteristics have been investigated and a variety of applications developed. These developments have led to new fields of chemistry called host-guest chemistry and supramolecular chemistry. This book presents the state-of-the-art of the chemistry of crown ethers and analogous compounds. The first chapter provides an orientation in the new fields of chemistry. Chapter 2 reviews advances in synthetic procedures for crown ethers and analogous compounds including azacrown ethers, thiacrown ethers, functionalized crown ethers, cryptands and others. The focus of chapter 3 is on the concept and synthetic strategies for the molecular design of new crown compounds. Chapters 4-7 are concerned with noteworthy topics in the applications of crown compounds. Chapter 4 deals with the application to ion-selective electrodes and liquid chromatography, both of which are the most important targets in the analytical application of crown compounds. One major application of crown ethers is the design and syntheses of artificial molecules which can catalyze a useful synthetic reaction in an enzyme-mimetic reaction manner, through novel non-covalent complexes. The strategies for enzymatic modelling with crown ethers are covered in chapter 5, while chapter 6 presents the principle of amine-selective colour complexation and its application. In chapter 7 switched-on crown ethers that can respond to environmental stimuli are reviewed. The final chapter is devoted to a wide-ranging discussion of developments in macrocyclic polyamine chemistry. Unlike crown ethers, macrocyclic polyamines, bearing nitrogen donor atoms which belong to a soft base, form complexes with ions of transition metals and heavy metals which are classified as soft acids. Therefore, macrocyclic polyamines are expected to have very versatile applications. Scientists in chemistry, biochemistry, physical organic chemistry, pharmaceutical chemistry and industrial chemistry will find this book a helpful summary and a stimulating contribution to research in this specialized field of crown compounds.
Cation Binding By Macrocycles
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Author : Inoue
language : en
Publisher: Routledge
Release Date : 2018-10-03
Cation Binding By Macrocycles written by Inoue and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-03 with Medical categories.
This reference details the theory and application of cation complexation, including the design and synthesis of various cyclic systems, these materials' use as transport systems, in complexation and selectivity studies by macrocyclic systems, and methodologies for understanding these phenomena. In a
Host Guest Complex Chemistry Macrocycles
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Author : F. Vögtle
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Host Guest Complex Chemistry Macrocycles written by F. Vögtle 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 2012-12-06 with Science categories.
The scientific and practical interest in coronands (crown ethers), cryptands, podands as complexing agents for cations as well as for anions and neutral low molecular species is undeniable 1,2). The chemistry of crown compounds is steadily increasing. About 250 original papers dealing with crown chemistry appeared only in 1980. New molecules· with crown ether properties are constantly synthesized and new applications discov,?red. Owing to lack of space, only a small number of the original publications is men tioned here. Thus, in the literature compilation only some, but relevant works are selected for each chapter. Whenever possible, reference is made to reviews or review-like articles alone by means of which origin,al works can be consulted. The reviews given under ref. 1) are considered to be the most relevant. The formulae presented in the figures should be understood as representative structures outlining a specific field. 2 Classification of Oligo-/Multidentate Neutral Ligands and of their Complexes Today, a distinction is made between the classical ring oligoethers (crown ethers) and monocyclic coronands, oligocyclic spherical cryptands and the acyclic podands with respect to topological aspects 3). This classification and the topology are illustrated in Fig. 1, each figure representing the minimum number of donor atoms and chain segments characteristic of each class of compounds. Multidentate mono cyclic ligands with any type of donor atoms are called coronands ("crown compounds"), while the term crown ether should be reserved for cyclic oligoethers exclusively containing oxygen as donor atom.
Stability And Reactivity Of Crown Ether Complexes
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Author : F. de Jong
language : en
Publisher:
Release Date : 1981
Stability And Reactivity Of Crown Ether Complexes written by F. de Jong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Science categories.
Crown Ethers And Analogs Updates
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Author : E. Weber
language : en
Publisher:
Release Date : 1989-09-28
Crown Ethers And Analogs Updates written by E. Weber and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989-09-28 with Science categories.
Derived from the "Chemistry of Functional Groups" series, this volume includes key chapters from an earlier volume on crown ethers. Material has been updated and new material included. Topics discussed include the synthesis of crown ethers and analogs and various complexes and selectivity.
Crown Ethers And Phase Transfer Catalysis In Polymer Science
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Author : Lon Mathias
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-22
Crown Ethers And Phase Transfer Catalysis In Polymer Science written by Lon Mathias 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 2013-11-22 with Technology & Engineering categories.
Phase transfer catalysis or interfacial catalysis is a syn thetic technique involving transport of an organic or inorganic salt from a solid or aqueous phase into an organic liquid where reaction with an organic-soluble substrate takes place. Over the past 15 years there has been an enormous amount of effort invested in the development of this technique in organic synthe sis. Several books and numerous review articles have appeared summarizing applications in which low molecular weight catalysts are employed. These generally include either crown ethers or onium salts of various kinds. While the term phase transfer catalysis is relatively new, the concept of using a phasetrans fer agent (PTA) is much older~ Both Schnell and Morgan employed such catalysts in synthesis of polymeric species in the early 1950's. Present developments are really extensions of these early applications. It has only been within the last several years that the use of phase transfer processes have been employed in polymer synthesis and modification. Similarly, the use of polymer-bound phase transfer agents is also a recent development. These and related areas have nonetheless enjoyed explosive growth as mea sured by the number of publications and the variety of applica tions which have appeared. Several reviews dealing with these l 6 polymer-related investigations have been published.
Template Synthesis Of Macrocyclic Compounds
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Author : N. V. Gerbeleu
language : de
Publisher: John Wiley & Sons
Release Date : 2008-07-11
Template Synthesis Of Macrocyclic Compounds written by N. V. Gerbeleu 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.
The synthesis of macrocycles is an art in itself. Template-controlled synthesis provides elegant access to fascinating macrocyclic structures. Polyazamacrocycles, crown ethers, cryptands, rotaxanes, knots -- the range of macrocyclic compounds is as broad as their potential application as molecular switches, in ion exchange, electron transfer or catalysis. This book provides authoritative information on all aspects of template-controlled macrocyclizations. It covers in depth the current state of research on template processes - novel synthetic techniques and mechanistic approaches. The critical discussion of the diverse synthetic routes includes the detailed characterization of the broad variety of macrocyclic products. References to applications of macrocyclic compounds and over 1,500 citations make this handbook an indispensable tool for chemists in academia and industry. Researchers in organic and supramolecular chemistry, biotechnology, and inorganic chemistry will find inspiration for the design, synthesis, and myriad uses of new synthetic macrocycles.
Ion Association And Complexation Of Alkali Cations By Crown Ethers And Cryptands In Various Solvents
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Author : Sadegh Khazaeli
language : en
Publisher:
Release Date : 1982
Ion Association And Complexation Of Alkali Cations By Crown Ethers And Cryptands In Various Solvents written by Sadegh Khazaeli and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Alkali metals categories.