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Brett M. Rambo ∙ Eric S. Silver ∙ Christopher W. Bielawski ∙ Jonathan L. Sessler Covalent Polymers Containing Discrete Heterocyclic Anion Receptors Philip A. Gale ∙ Chang-Hee Lee Calix[n]pyrroles as Anion and Ion-Pair Complexants Wim Dehaen Calix[n]phyrins: Synthesis and Anion Recognition Hiromitsu Maeda Acyclic Oligopyrrolic Anion Receptors Jeffery T. Davis Anion Binding and Transport by Prodigiosin and Its Analogs Hemraj Juwarker ∙ Jae-min Suk ∙ Kyu-Sung Jeong Indoles and Related Heterocycles Pavel Anzenbacher Jr. Pyrrole-Based Anion Sensors, Part I: Colorimetric Sensors Pavel Anzenbacher Jr. Pyrrole-Based Anion Sensors, Part II: Fluorescence, Luminescence, and Electrochemical Sensors Ermitas Alcalde ∙ Immaculada Dinarès ∙ Neus Mesquida Imidazolium-Based Receptors Nathan L. Kilah ∙ Paul D. Beer Pyridine and Pyridinium-Based Anion Receptors Kevin P. McDonald ∙ Yuran Hua ∙ Amar H. Flood 1,2,3-Triazoles and the Expanding Utility of Charge Neutral CHlllAnion Interactions
Anion recognition plays a critical role in a range of biological processes, and a variety of receptors and carriers can be found throughout the natural world. Chemists working in the area of supramolecular chemistry have created a range of anion receptors, drawing inspiration from nature as well as their own inventive processes. This book traces the origins of anion recognition chemistry as a unique sub-field in supramolecular chemistry while illustrating the basic approaches currently being used to effect receptor design. The combination of biological overview and summary of current synthetic approaches provides a coverage that is both comprehensive and comprehensible. First, the authors detail the key design motifs that have been used to generate synthetic receptors and which are likely to provide the basis for further developments. They also highlight briefly some of the features that are present in naturally occurring anion recognition and transport systems and summarise the applications of anion recognition chemistry. Providing as it does a detailed review for practitioners in the field and a concise introduction to the topic for newcomers, Anion Receptor Chemistry reflects the current state of the art. Fully referenced and illustrated in colour, it is a welcome addition to the literature.
with contributions by numerous experts
This book presents critical reviews of the present position and future trends in modern chemical research concerned with chemical structure and bonding. The book contains short and concise reports, each written by the world's renowned experts.
Building on the pioneering work in supramolecular chemistry from the last 20 years or so, this monograph addresses new and recent approaches to anion coordination chemistry. Synthesis of receptors, biological receptors and metallareceptors, the energetics of anion binding, molecular structures of anion complexes, sensing devices are presented and computational studies addressed to aid with the understanding of the different driving forces responsible for anion complexation. The reader is promised an actual picture of the state of the art for this exciting and constantly evolving field of supramolecular anion coordination chemistry. The topics range from ion channels to selective sensors, making it attractive to all researchers and PhD students with an interest in supramolecular chemistry.
Despite the central role anionic species have been shown to play in both mineralogical and biological processes, until now there have been no comprehensive references dealing exclusively with anionic coordination chemistry. Written by a group comprising pioneering researchers from the United States and Europe, Supramolecular Chemistry of Anions covers all theoretical and practical aspects of anion complexation, from thermodynamics and structure to catalysis and various applications. The authors begin with the 1967 discovery of halide inclusion by bicyclic diammonium receptors and trace the development of anion coordination chemistry through the most recent developments in the field. Topics covered in detail include: * Pre-supramolecular anion chemistry * Natural and artificial molecules that can act as anion receptors * Preorganization and chemical design * Structural, thermodynamic, electrochemical, and photochemical aspects of anion coordination * Computer methods for receptor design and multiple host-guest relations * Anion receptor catalysis and molecular recognition and transformation of nucleotides Supramolecular Chemistry of Anions is a valuable professional resource for organic and inorganic chemists, analytical chemists, biotechnologists, pharmaceutical scientists, and environmental chemists. It also serves as an excellent graduate-level text for students of molecular recognition, catalysis, and biomimetic chemistry.
Explores the potential of new types of anion-binding catalysts to solve challenging synthetic problems Anion-Binding Catalysis introduces readers to the use of anion-binding processes in catalytic chemical activation, exploring how this approach can contribute to the future design of novel synthetic transformations. Featuring contributions by world-renowned scientists in the field, this authoritative volume describes the structure, properties, and catalytic applications of anions as well as synthetic applications and practical analytical methods. In-depth chapters are organized by type of catalyst rather than reaction type, providing readers with an accessible overview of the existing classes of effective catalysts. The authors discuss the use of halogens as counteranions, the combination of (thio)urea and squaramide-based anion-binding with other types of organocatalysis, anion-binding catalysis by pnictogen and tetrel bonding, nucleophilic co-catalysis, anion-binding catalysis by pnictogen and tetrel bonding, and more. Helping readers appreciate and evaluate the potential of anion-binding catalysis, this timely book: Illustrates the historical development, activation mode, and importance of anion-binding in chemical catalysis Explains the analytic methods used to determine the anion-binding affinity of the catalysts Describes catalytic and synthetic applications of common NH- and OH-based hydrogen-donor catalysts as well as C-H triazole/triazolium catalysts Covers amino-catalysis involving enamine, dienamine, or iminium activation approaches Discusses new trends in the field of anion-binding catalysis, such as the combination of anion-binding with other types of catalysis Presenting the current state of the field as well as the synthetic potential of anion-binding catalysis in future, Anion-Binding Catalysis is essential reading for researchers in both academia and industry involved in organic synthesis, homogeneous catalysis, and pharmaceutical chemistry.
The design and use of chemosensors for ion and molecule recognition - a branch of supramolecular chemistry - have developed at an extraordinary rate. This imaginative and creative area involves work at the interface of organic and inorganic chemistry, physical chemistry, biology, medicine and environmental science and is providing new sensors based on the specific signal delivered by the analyte-probe reaction. The emergence of efficient fluorescent receptors has allowed the detection, identification, and even titration of, for example, heavy metal or radionuclide pollutants. Further, with sensors displaying specific and strong complexation properties, such materials could be detected and removed at very low concentrations. Further, among other species of biological interest, sugars, oxygen and carbon dioxide can actually be probed with optodes and similar devices. This is clearly just the beginning of a very promising line of research. Audience: Organic chemists interested in creating new chemosensors, as well as the many potential end users of such sensors.
The original funded project (1996) had as its major goal the design and synthesis of polyammonium macrocyclic receptors for oxoanions of environmental importance, particularly those found in high level waste tanks. Nitrate was a major ion of focus. The project evolved over the last six years to target important and timely problems of critical interest to the EMSP mission. Emphasis was shifted from polyammonium receptors to lipophilic amide-based receptors more amenable for both separations and sensing applications in the last renewal, and significant effort was directed toward selective recognition of sulfate because of its detrimental role in the vitrification process. The last three years have been focused on the basic chemical aspects of anion receptor design of functional pH independent systems, with the ultimate goal of targeting the selective binding of sulfate, as well as design of separations strategies for selective and efficient removal of targeted anions. Key findings during these years include: (1) among the first synthetic sulfate-selective anion-binding agents; (2) simple, structure-based methods for modifying the intrinsic anion selectivity of a given class of anion receptors; and (3) two new classes of macrocyclic ligands, mixed amide/quaternary amine, thioamide-based macrocycles and cryptands.