Chelating Agents and Metal Chelates

Chelating Agents and Metal Chelates PDF Author: F Dwyer
Publisher: Elsevier
ISBN: 0323146414
Category : Science
Languages : en
Pages : 547

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Book Description
Chelating Agents and Metal Chelates focuses on the structure and properties of metal chelates, as well as bond types, stereochemistry, and optical phenomena. The selection first offers information on historical background and fundamental concepts and the nature of metal-ligand bond. Discussions focus on the structure and stability of metal chelates, bond types and characteristic properties, classes of acceptor metal atoms, and metal-metal bonds in complex compounds. The text also touches on bidentate chelates, design and stereochemistry of multidentate chelating agents, and optical phenomena in metal chelates. The publication ponders on oxidation-reduction potentials as functions of donor atom and ligand and metal chelates of ethylenediaminetetraacetic acid and related substances. Topics include liquid junction potentials, reversibility, measurement of redox potentials, ethylenediaminetetraacetato chelate couples, and metal chelates of ethylenediaminetetraacetic acid. The text also takes a look at metal chelates in biological systems and physical and coordination chemistry of tetrapyrrole pigments. The manuscript is a vital reference for senior students, research workers, biologists, and medical scientists interested in the chemistry of metal chelates.

Chelating Agents and Metal Chelates

Chelating Agents and Metal Chelates PDF Author: F Dwyer
Publisher: Elsevier
ISBN: 0323146414
Category : Science
Languages : en
Pages : 547

Get Book Here

Book Description
Chelating Agents and Metal Chelates focuses on the structure and properties of metal chelates, as well as bond types, stereochemistry, and optical phenomena. The selection first offers information on historical background and fundamental concepts and the nature of metal-ligand bond. Discussions focus on the structure and stability of metal chelates, bond types and characteristic properties, classes of acceptor metal atoms, and metal-metal bonds in complex compounds. The text also touches on bidentate chelates, design and stereochemistry of multidentate chelating agents, and optical phenomena in metal chelates. The publication ponders on oxidation-reduction potentials as functions of donor atom and ligand and metal chelates of ethylenediaminetetraacetic acid and related substances. Topics include liquid junction potentials, reversibility, measurement of redox potentials, ethylenediaminetetraacetato chelate couples, and metal chelates of ethylenediaminetetraacetic acid. The text also takes a look at metal chelates in biological systems and physical and coordination chemistry of tetrapyrrole pigments. The manuscript is a vital reference for senior students, research workers, biologists, and medical scientists interested in the chemistry of metal chelates.

Chemistry of Polymeric Metal Chelates

Chemistry of Polymeric Metal Chelates PDF Author: Gulzhian I. Dzhardimalieva
Publisher: Springer
ISBN: 3319560247
Category : Technology & Engineering
Languages : en
Pages : 1036

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Book Description
This book deals with the chemistry of polymeric metal chelates. The main results and the production and chemical structure of polymers with chelate units as well as the specificity of metal complex binding of different structure are presented here. This book also reveals the transformations which components undergo in the course of chelation. Special attention is paid not only to synthetic but also to natural (including living) systems. The usage of polymeric metal chelates and their development are examined. The related research was performed for chelates with chain structure. This book is useful to researchers being active in synthesis and design of macromolecular metal chelates

A Textbook of Inorganic Chemistry – Volume 1

A Textbook of Inorganic Chemistry – Volume 1 PDF Author: Mandeep Dalal
Publisher: Dalal Institute
ISBN: 8193872002
Category : Science
Languages : en
Pages : 482

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Book Description
An advanced-level textbook of inorganic chemistry for the graduate (B.Sc) and postgraduate (M.Sc) students of Indian and foreign universities. This book is a part of four volume series, entitled "A Textbook of Inorganic Chemistry – Volume I, II, III, IV". CONTENTS: Chapter 1. Stereochemistry and Bonding in Main Group Compounds: VSEPR theory; dπ -pπ bonds; Bent rule and energetic of hybridization. Chapter 2. Metal-Ligand Equilibria in Solution: Stepwise and overall formation constants and their interactions; Trends in stepwise constants; Factors affecting stability of metal complexes with reference to the nature of metal ion and ligand; Chelate effect and its thermodynamic origin; Determination of binary formation constants by pH-metry and spectrophotometry. Chapter 3. Reaction Mechanism of Transition Metal Complexes – I: Inert and labile complexes; Mechanisms for ligand replacement reactions; Formation of complexes from aquo ions; Ligand displacement reactions in octahedral complexes- acid hydrolysis, base hydrolysis; Racemization of tris chelate complexes; Electrophilic attack on ligands. Chapter 4. Reaction Mechanism of Transition Metal Complexes – II: Mechanism of ligand displacement reactions in square planar complexes; The trans effect; Theories of trans effect; Mechanism of electron transfer reactions – types; outer sphere electron transfer mechanism and inner sphere electron transfer mechanism; Electron exchange. Chapter 5. Isopoly and Heteropoly Acids and Salts: Isopoly and Heteropoly acids and salts of Mo and W: structures of isopoly and heteropoly anions. Chapter 6. Crystal Structures: Structures of some binary and ternary compounds such as fluorite, antifluorite, rutile, antirutile, crystobalite, layer lattices- CdI2, BiI3; ReO3, Mn2O3, corundum, pervoskite, Ilmenite and Calcite. Chapter 7. Metal-Ligand Bonding: Limitation of crystal field theory; Molecular orbital theory: octahedral, tetrahedral or square planar complexes; π-bonding and molecular orbital theory. Chapter 8. Electronic Spectra of Transition Metal Complexes: Spectroscopic ground states, Correlation and spin-orbit coupling in free ions for Ist series of transition metals; Orgel and Tanabe-Sugano diagrams for transition metal complexes (d1 – d9 states); Calculation of Dq, B and β parameters; Effect of distortion on the d-orbital energy levels; Structural evidence from electronic spectrum; John-Tellar effect; Spectrochemical and nephalauxetic series; Charge transfer spectra; Electronic spectra of molecular addition compounds. Chapter 9. Magantic Properties of Transition Metal Complexes: Elementary theory of magneto - chemistry; Guoy’s method for determination of magnetic susceptibility; Calculation of magnetic moments; Magnetic properties of free ions; Orbital contribution, effect of ligand-field; Application of magneto-chemistry in structure determination; Magnetic exchange coupling and spin state cross over. Chapter 10. Metal Clusters: Structure and bonding in higher boranes; Wade’s rules; Carboranes; Metal carbonyl clusters - low nuclearity carbonyl clusters; Total electron count (TEC). Chapter 11. Metal-π Complexes: Metal carbonyls: structure and bonding; Vibrational spectra of metal carbonyls for bonding and structure elucidation; Important reactions of metal carbonyls; Preparation, bonding, structure and important reactions of transition metal nitrosyl, dinitrogen and dioxygen complexes; Tertiary phosphine as ligand.

The Solvent Extraction of Metal Chelates

The Solvent Extraction of Metal Chelates PDF Author: Jiří Starý
Publisher: Elsevier
ISBN: 1483149463
Category : Science
Languages : en
Pages : 255

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Book Description
The Solvent Extraction of Metal Chelates is a comprehensive account of the solvent extraction (liquid-liquid extraction) of metal chelate complexes. Topics covered include the composition and stability of metal chelates; analytical applications of the solvent extraction of metal chelates; and selective extraction procedures for metals. A theoretical treatment of the solvent extraction of metal chelates is also given. This book is comprised of six chapters and begins with an overview of solvent extraction and how it can be used to solve important theoretical problems concerning the composition and stability of soluble and insoluble metal complexes. The next chapter examines the composition and stability of metal chelates based on the assumption that only uncharged complexes are dissolved and extracted by the organic solvents. A theory of the solvent extraction of metal chelates is then described, paying particular attention to a variety of factors that influence the extraction of metal chelates, including acidity, solubility and instability of the metal chelate, and organic solvent. Some analytical applications of the solvent extraction of metal chelates are also considered. The last two chapters deal with systems and selective extraction procedures for metals. This monograph will be of particular value to inorganic and analytical chemists.

CRC Handbook of Food Additives, Second Edition

CRC Handbook of Food Additives, Second Edition PDF Author: Thomas E. Furia
Publisher: CRC Press
ISBN: 9780849305429
Category : Technology & Engineering
Languages : en
Pages : 1020

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Book Description


Chelation Therapy in the Treatment of Metal Intoxication

Chelation Therapy in the Treatment of Metal Intoxication PDF Author: Jan Aaseth
Publisher: Academic Press
ISBN: 0128030739
Category : Medical
Languages : en
Pages : 390

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Book Description
Chelation Therapy in the Treatment of Metal Intoxication presents a practical guide to the use of chelation therapy, from its basic chemistry, to available chelating antidotes, and the application of chelating agents. Several metals have long been known to be toxic to humans, and continue to pose great difficulty to treat. These challenges pose particular problems in industrial settings, with lead smelting known to be associated with hemopoietic alterations and paralyses, and the inhalation of mercury vapor in mercury mining being extremely detrimental to the central nervous system. Clinical experience has demonstrated that acute and chronic human intoxications with a range of metals can be treated efficiently by administration of chelating agents. Chelation Therapy in the Treatment of Metal Intoxication describes the chemical and biological principles of chelation in the treatment of these toxic metal compounds, including new chelators such as meso-2,3-dimercaptosuccinic acid (DMSA) and D,L-2,3-dimercapto-1-propanesulfonic acid (DMPS). - Presents all the current findings on the potential for chelation as a therapy for metal intoxication - Presents practical guidelines for selecting the most appropriate chelating agent - Includes coverage on radionuclide exposure and metal storage diseases - Describes the chemical and biological principles of chelation in the treatment of toxic metal compounds

The Chemistry of Pincer Compounds

The Chemistry of Pincer Compounds PDF Author: David Morales-Morales
Publisher: Elsevier
ISBN: 0080545157
Category : Science
Languages : en
Pages : 467

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Book Description
Pincer complexes are formed by the binding of a chemical structure to a metal atom with at least one carbon-metal bond. Usually the metal atom has three bonds to a chemical backbone, enclosing the atom like a pincer. The resulting structure protects the metal atom and gives it unique properties.The last decade has witnessed the continuous growth in the development of pincer complexes. These species have passed from being curiosity compounds to chemical chameleons able to perform a wide variety of applications. Their unique metal bound structures provide some of the most active catalysts yet known for organic transformations involving the activation of bonds. The Chemistry of Pincer Compounds details use of pincer compounds including homogeneous catalysis, enantioselective organic transformations, the activation of strong bonds, the biological importance of pincer compounds as potential therapeutic or pharmaceutical agents, dendrimeric and supported materials.* Describes the chemistry and applications of this important class of organometallic and coordination compounds* Covers the areas in which pincer complexes have had an impact* Includes information on more recent and interesting pincer compounds not just those that are well-known

Metal Transporters

Metal Transporters PDF Author: Jose M. Arguello
Publisher: Academic Press
ISBN: 0123943906
Category : Science
Languages : en
Pages : 478

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Book Description
This volume of Current Topics in Membranes focuses on metal transmembrane transporters and pumps, a recently discovered family of membrane proteins with many important roles in the physiology of living organisms. The book summarizes the most recent advances in the field of metal ion transport and provides a broad overview of the major classes of transporters involved in homeostasis of heavy metals. Various families of the transporters and metal specificities are discussed with the focus on the structural and mechanistic aspects of their function and regulation. The reader will access information obtained through a variety of approaches ranging from X-ray crystallography to cell biology and bioinformatics, which have been applied to transporters identified in diverse biological systems, such as pathogenic bacteria, plants, humans and others. Field is cutting-edge and a lot of the information is new to research community Wide breadth of topic coverage Contributors of high renown and expertise

Wound Healing, Tissue Repair, and Regeneration in Diabetes

Wound Healing, Tissue Repair, and Regeneration in Diabetes PDF Author: Debasis Bagchi
Publisher: Academic Press
ISBN: 0128164131
Category : Technology & Engineering
Languages : en
Pages : 638

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Book Description
Wound Healing, Tissue Repair and Regeneration in Diabetes explores a wide range of topics related to wound healing, tissue repair and regeneration, putting a special focus on diabetes and obesity. The book addresses the molecular and cellular pathways involved in the process of wound repair and regeneration. Other sections explore a wide spectrum of nutritional supplements and novel therapeutic approaches, provide a comprehensive overview, present various types of clinical aspects related to diabetic wounds, including infection, neuropathy, and vasculopathy, provide an exhaustive review of various foods, minerals, supplements and phytochemicals that have been proven beneficial, and assess future directions. This book is sure to be a welcome resource for nutritionists, practitioners, surgeons, nurses, wound researchers and other health professionals.

Nuclear Medicine: The Requisites

Nuclear Medicine: The Requisites PDF Author: Harvey A. Ziessman, MD
Publisher: Elsevier Health Sciences
ISBN: 0323082998
Category : Medical
Languages : en
Pages : 466

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Book Description
Get the essential tools you need to make an accurate diagnosis with Nuclear Medicine: The Requisites! The newest edition of his bestselling volume by Drs. Harvey Ziessman, Janis O'Malley, and James Thrall delivers the conceptual, factual, and interpretive information you need for effective clinical practice in nuclear medicine imaging, as well as for certification and recertification review. Prepare for the written board exam and for clinical practice with critical information on nuclear medicine physics, detection and instrumentation, SPECT and PET imaging, and clinical nuclear medicine imaging. Get the best results from today's most technologically advanced approaches, including hybrid imaging, PET/CT, and SPECT/CT, as well as recent developments in instrumentation, radiopharmaceuticals, and molecular imaging. Clearly visualize the findings you're likely to see in practice and on exams with nearly 200 vibrant new full-color images. Access the fully searchable text and downloadable images online at www.expertconsult.com.