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Supramolecular Chemistry Of Selective Anion Recognition For Anions Of Environmental Relevance
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Book Synopsis Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance by :
Download or read book Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project involves the design and synthesis of receptors for anions of environmental importance, including emphasis on high level and low activity waste. Polyammonium macrocycles as receptors and nitrate as target anion were the focus of the first phase of this project. A second phase involved the synthesis of lipophilic amide based receptors in order to increase the potential for obtaining workable receptors for both separations and sensing applications on site. In the renewal of this project, anions have been extended especially to include selective recognition and binding of sulfate. A three tier approach was employed: I. Design, synthesis, and physical and structural characterization of receptors; II. Examination of the technique known as ITIES, Interface Between Two Immiscible Electrolyte Solutions, as an analytical probe for anion analysis; and III. Separations studies using lipophilic amide receptors for anion binding done at the Oak Ridge National Laboratory by Bruce Moyer. The result of this program will impact a variety of needs of the Environmental Science Management Program in both sensing and separations areas.
Book Synopsis Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance by : Kristin Bowman-James
Download or read book Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance written by Kristin Bowman-James and published by . This book was released on 2003 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis The Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance by :
Download or read book The Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Work at carried out at ORNL since the inception of the project has served to demonstrate that the calix[4]pyrroles from the co-P.I.'s laboratory at the Univ. of Texas strongly enhance the extraction of sulfate by tricaprylmethylammonium nitrate or chloride in the presence of excess nitrate and chloride. Similar results were found in the case of the tetraamide macrocycles synthesized in the Bowman-James laboratory (Univ. of Kansas). Effort at the Univ. of Texas thus focused on generating new pyrrole-amide macrocycles that might combine the most favorable aspects of the calixpyrroles and the tetraamides. This culminated in the synthesis of several new receptors, which provided a ''matched set'' from whence insights into anion recognition could be inferred. As can be inferred from the data summarized in Table 1, small adjustments in the structure allow for a fine-tuning of the anion binding properties in favor of sulfate recognition, or in the case of injudicious modifications, selectivities that favor completely different classes of anionic substrates.
Download or read book The Warrender Papers written by and published by . This book was released on 1931 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance. 1998 Annual Progress Report by :
Download or read book Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance. 1998 Annual Progress Report written by and published by . This book was released on 1998 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project has as its focus the design and synthesis of polyammonium macrocyclic receptors for oxoanions of environmental importance. The basic research aspects of this project involve: (1) synthesis (and the search for improved synthetic methods); (2) solid state structure determination and thermodynamics studies (to ascertain structural criteria for and strength of anion binding); and (3) molecular dynamics simulations (to assess solution characteristics of the interactions between anions and their receptors). Applications-oriented goals include the fabrication of more selective anion-selective electrodes and the use of these compounds in liquid-liquid separations. The latter goal comprises the subcontract with Dr. Bruce Moyer at Oak Ridge National Laboratory. This report summarizes work after 1 year and 7 months of a 3-year project. To date, the authors have focussed on the design and synthesis of selective receptors for nitrate and phosphate.
Book Synopsis Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance. Progress Report, October 1996--July 1997 by :
Download or read book Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance. Progress Report, October 1996--July 1997 written by and published by . This book was released on 1997 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project has as its focus the design and synthesis of polyammonium macrocyclic receptors for oxoanions of environmental importance. The basic research aspects of this project involve synthesis (and the search for improved synthetic methods), solid state structure determination and thermodynamics studies (to ascertain structural criteria for and strength of anion binding), and molecular dynamics simulations (to assess solution characteristics of the interactions between anions and their receptors). Applications-oriented goals include the fabrication of more efficient anion-selective electrodes and the use of these compounds in liquid- liquid separations. The latter goal is the subcontract with Bruce Moyer at Oak Ridge National Laboratory. This first year the authors have focused on nitrates and phosphates. Considerable progress has been made in the basic areas of synthesis, solid state Structure, and molecular dynamics. Anion selective electrodes have also be made which show promising selectivities for oxoanions of interest. Below are described the major findings and significance in the categories of synthesis, structure and molecular dynamics, and electrode studies. Synthesis. The synthesis of polyaza macrocycles which are the focus of these studies is often tedious and time-consuming. A major breakthrough which the authors have made this year is to identify other polyaza macrocycles, which also bind the desired anions, but which are simpler to synthesize via a two step Schiff base/reduction process with high yields. This is truly significant since now the authors can obtain large quantities of the macrocycles and do multiple studies at once (crystallizations, thermodynamics, electrode, and eventually separations). Most of their studies to date have focused on monocyclic systems, but they are now beginning to examine bicyclic macrocycles, which can be synthesized by the same method starting with the tetraamine known as tren.
Book Synopsis Anion Receptor Chemistry by : Jonathan L Sessler
Download or read book Anion Receptor Chemistry written by Jonathan L Sessler and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Supramolecular Chemistry of Selective Anion Recognition by :
Download or read book Supramolecular Chemistry of Selective Anion Recognition written by and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: This presentation was given at the DOE Office of Science-Environmental Management Science Program (EMSP) High-Level Waste Workshop held on January 19-20, 2005 at the Savannah River Site.
Download or read book Anion Sensing written by Eric V. Anslyn and published by Springer Science & Business Media. This book was released on 2005-05-06 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: with contributions by numerous experts
Book Synopsis Anion Recognition in Supramolecular Chemistry by : Philip A. Gale
Download or read book Anion Recognition in Supramolecular Chemistry written by Philip A. Gale and published by Springer. This book was released on 2012-11-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Anion Coordination Chemistry by : Kristin Bowman-James
Download or read book Anion Coordination Chemistry written by Kristin Bowman-James and published by John Wiley & Sons. This book was released on 2012-03-27 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Research Opportunities for Managing the Department of Energy's Transuranic and Mixed Wastes by : National Research Council
Download or read book Research Opportunities for Managing the Department of Energy's Transuranic and Mixed Wastes written by National Research Council and published by National Academies Press. This book was released on 2002-11-07 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: About 155,000 cubic meters of waste contaminated with both radioactive isotopes and hazardous chemicals are stored at some 30 DOE sites, and another 450,000 cubic meters are buried. While DOE is making a concerted effort to properly dispose of this waste, the amount translates to a multi-decade effort that will require handling, characterizing, and shipping hundreds of thousands of waste containers at a total cost of billions of dollars. This report describes basic scientific research that can lead to new technologies for performing these tasks more safely and cost effectively.
Book Synopsis Medicinal and Environmental Chemistry: Experimental Advances and Simulations (Part II) by : Tahmeena Khan
Download or read book Medicinal and Environmental Chemistry: Experimental Advances and Simulations (Part II) written by Tahmeena Khan and published by Bentham Science Publishers. This book was released on 2021-09-02 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medicinal and Environmental Chemistry: Experimental Advances and Simulations is a collection of topics that highlight the use of pharmaceutical chemistry to assess the environment or make drug design and chemical testing more environment friendly. The eleven chapters included in the second part of this book set cover diverse topics, blending the fields of environmental chemistry and medicinal chemistry and have been authored by experts, scientists and academicians from renowned institutions. This part is more specialized in nature, focusing primarily on the effects of air pollution and water contamination on human health. Chapters covering pharmaceutical interventions and pollution control measures, respectively follow these initial topics. Part II also features specialized topics that aim to address some unique challenges of the above mentioned problems including antibiotic pollution, pharmaceutical analysis of pollutants, chemosensors, biosteric modifications and new drug development strategies against SARS-CoV2. Key Features: 1. 11 topics which blend environmental chemistry and medicinal chemistry 2. Contributions from more than 40 experts 3. Includes topics covering effects of air pollution on human health and disease 4. Includes specialized topics on pharmaceutical analysis in the environment, and modifications of compounds for pharmaceutical purposes 5. Bibliographic references This reference is an essential source of information for readers and scholars involved in environmental chemistry, pollution management and pharmaceutical chemistry courses at graduate and undergraduate levels. Professionals and students involved in occupational medicine will also benefit from the wide range of topics covered.
Book Synopsis Research Needs for High-Level Waste Stored in Tanks and Bins at U.S. Department of Energy Sites by : National Research Council
Download or read book Research Needs for High-Level Waste Stored in Tanks and Bins at U.S. Department of Energy Sites written by National Research Council and published by National Academies Press. This book was released on 2001-10-05 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Department of Energy (DOE) has approximately 400 million liters (100 million gallons) of liquid high-level waste (HLW) stored in underground tanks and approximately 4,000 cubic meters of solid HLW stored in bins. The current DOE estimate of the cost of converting these liquid and solid wastes into stable forms for shipment to a geological repository exceeds $50 billion to be spent over several decades (DOE, 2000). The Committee on Long-Term Research Needs for Radioactive High-Level Waste at Department of Energy Sites was appointed by the National Research Council (NRC) to advise the Environmental Management Science Program (EMSP) on a long-term research agenda addressing the above problems related to HLW stored in tanks and bins at DOE sites.
Book Synopsis Supramolecular Gels by : Tifeng Jiao
Download or read book Supramolecular Gels written by Tifeng Jiao and published by John Wiley & Sons. This book was released on 2021-08-23 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supramolecular Gels Discover a current and authoritative overview of the cutting-edge in supramolecular gels from a leading voice in the field A promising new class of materials shows potential and is receiving increasing attention as an intelligent material for multifunctional systems. In a work that is sure to be of great interest to a wide variety of researchers, chemists, and engineers, Supramolecular Gels: Materials and Emerging Applications delivers an application-oriented and focused book exploring the most recent applications of supramolecular gels. This interdisciplinary book presents the underlying fundamentals of supramolecular gels before discussing their assembly mechanisms and structures. It also introduces different material systems, including composite supramolecular gels, organogels, hydrogels, self-healing, and graphene-based supramolecular gels. The book discusses current and emerging applications of these materials in devices like sensors and actuators, biomedical tools, and environmental applications. The distinguished author also offers valuable insights with respect to the design and character of brand-new versatile soft materials. Readers will also benefit from the inclusion of: A thorough introduction to the fundamentals of supramolecular gels, including their formation, classification, self-assembly, and mechanisms An exploration of supramolecular chirality and regulation in gel structures, as well as self-assembly and environmental applications of composite supramolecular gels Practical discussions of fluorescent organogels and hydrogels and their applications in analyte sensing An examination of self-healing and graphene-based supramolecular gels, and supramolecular gels for sensors and actuators Perfect for materials scientists, organic chemists, biochemists, catalytic chemists, and environmental chemists, Supramolecular Gels: Materials and Emerging Applications will also earn a place in the libraries of sensor developers and other professionals seeking a one-stop reference for this rapidly developing category of intelligent materials.
Book Synopsis Comprehensive Supramolecular Chemistry II by : George W. Gokel
Download or read book Comprehensive Supramolecular Chemistry II written by George W. Gokel and published by Elsevier. This book was released on 2017-06-22 with total page 4627 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Supramolecular Chemistry II, Second Edition, Nine Volume Set is a ‘one-stop shop’ that covers supramolecular chemistry, a field that originated from the work of researchers in organic, inorganic and physical chemistry, with some biological influence. The original edition was structured to reflect, in part, the origin of the field. However, in the past two decades, the field has changed a great deal as reflected in this new work that covers the general principles of supramolecular chemistry and molecular recognition, experimental and computational methods in supramolecular chemistry, supramolecular receptors, dynamic supramolecular chemistry, supramolecular engineering, crystallographic (engineered) assemblies, sensors, imaging agents, devices and the latest in nanotechnology. Each section begins with an introduction by an expert in the field, who offers an initial perspective on the development of the field. Each article begins with outlining basic concepts before moving on to more advanced material. Contains content that begins with the basics before moving on to more complex concepts, making it suitable for advanced undergraduates as well as academic researchers Focuses on application of the theory in practice, with particular focus on areas that have gained increasing importance in the 21st century, including nanomedicine, nanotechnology and medicinal chemistry Fully rewritten to make a completely up-to-date reference work that covers all the major advances that have taken place since the First Edition published in 1996
Book Synopsis Supramolecular Chemistry by : Peter J. Cragg
Download or read book Supramolecular Chemistry written by Peter J. Cragg and published by Springer Science & Business Media. This book was released on 2010-08-26 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to return to the biomimicry and medicinal potential that inspired many of the early supramolecular chemists and to set it in the context of current advances in the field. Following an overview of supramolecular chemistry, the first section considers the efforts made to synthesize artificial systems that mimic biological entities. The second section addresses the application of supramolecular principles to molecular diagnostics with a particular emphasis on the ‘receptor-relayreporter’ motif. Many of the examples chosen have clinical importance. The third section takes the clinical diagnostic theme further and demonstrates the therapeutic applications of supramolecular chemistry through photodynamic therapy, drug delivery, and the potential for synthetic peptides to form antibiotic tubes. The short epilogue considers the potential for supramolecular solutions to be found for further challenges in biomimetic and therapeutic chemistry.
