Recognition of Anions

Recognition of Anions

It is widely recognised that the design of anion hosts is a challenging task, especially in contrast to cation receptor design. The main reason for this is the diffuse nature of anions. Since Anions are significantly larger than the ...

Author: Ramon Vilar

Publisher: Springer

ISBN: 9783540790921

Category: Science

Page: 252

View: 565

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.
Categories: Science

Anion Recognition in Supramolecular Chemistry

Anion Recognition in Supramolecular Chemistry

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 ...

Author: Philip A. Gale

Publisher: Springer

ISBN: 9783642154447

Category: Science

Page: 372

View: 256

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
Categories: Science

Recognition of Anions

Recognition of Anions

This book presents critical reviews of the present position and future trends in modern chemical research concerned with chemical structure and bonding.

Author: Ramon Vilar

Publisher: Springer Science & Business Media

ISBN: 9783540790914

Category: Science

Page: 252

View: 632

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.
Categories: Science

Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance

Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance

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.

Author: Kristin Bowman-James

Publisher:

ISBN: OCLC:316475290

Category:

Page: 5

View: 746

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.
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Anion Sensing

Anion Sensing

DOI 10.1007 / 6101161 © Springer - Verlag Berlin Heidelberg 2005 Chiral Recognition of Anions Ivan Stibor ( ) . Petra Zlatušková Institute of Chemical Technology , Technická 5 , 166 88 Prague 6 , Czech Republic ...

Author: Eric V. Anslyn

Publisher: Springer Science & Business Media

ISBN: 3540232478

Category: Science

Page: 238

View: 806

with contributions by numerous experts
Categories: Science

The Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance

The Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance

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 ...

Author:

Publisher:

ISBN: OCLC:727332785

Category:

Page:

View: 828

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.
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Implementation of the Lima Declaration and Plan of Action

Implementation of the Lima Declaration and Plan of Action

This project have focuses 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 ...

Author:

Publisher:

ISBN: OCLC:251868322

Category:

Page: 52

View: 265

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Anion Receptor Chemistry

Anion Receptor Chemistry

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.

Author: Jonathan L Sessler

Publisher: Royal Society of Chemistry

ISBN: 9781847552471

Category: Science

Page: 430

View: 154

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.
Categories: Science

The Warrender Papers

The Warrender Papers

In this first year of funding, progress has been made towards the stated project goal of generating useful sulfate extractants.

Author:

Publisher:

ISBN: OCLC:185280644

Category:

Page:

View: 903

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Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance 1998 Annual Progress Report

Supramolecular Chemistry of Selective Anion Recognition for Anions of Environmental Relevance  1998 Annual Progress Report

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.

Author:

Publisher:

ISBN: OCLC:68354606

Category:

Page: 4

View: 331

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.
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