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Magnetic Exchange Coupling In 3d And 4f Complexes Using Radical Tetrazine Based Frameworks
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Book Synopsis Magnetic Exchange Coupling in 3d and 4f Complexes Using Radical Tetrazine-based Frameworks by : Maykon Alves Lemes
Download or read book Magnetic Exchange Coupling in 3d and 4f Complexes Using Radical Tetrazine-based Frameworks written by Maykon Alves Lemes and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: High symmetry and low coordinated single-ion lanthanides have been a successful recipe to design high performance single molecule magnets (SMMs). However, enhancement of the magnetic properties of polymetallic SMMs is an important challenge. Therefore, this thesis describes the use of redox non-innocent tetrazine-based ligands and d- and f- elements in order to fine-tune the electronic structure of the resulting compounds to promote strong exchange interactions between the spin carriers. As reported in the literature, radical-bridged ligands represent a potential strategy to improve the magnetic properties of polymetallic SMMs. Thus, chapter one introduces principal concepts that govern the physical properties of metal complexes containing radical-bridged ligands. Chapter two describes the magnetic properties of a unique air-stable tetratopic radical- bridged bpymtz·− (3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazine) templating four Ni(II) metal ions. The dc magnetic studies along with DFT calculations reveal strong ferromagnetic exchange coupling between the Ni- bpymtz·− of J = 98 cm-1 with a spin ground state of S = 9/2. Chapter three describes the application of another tetrazine-based ligand, bpytz (3,6- bis(3,5-dimethylpyrazolyl)-1,2,4,5-tetrazine) to probe magnetic exchange interactions in a {CoII4} supramolecular square. The modelling of dc susceptibility data shows significant Co(II) - bpytz·− magnetic coupling of J = - 118 cm-1 for a spin ground state ST = 4. While the non-reduced analog displays weak Co(II)-Co(II) exchange of J = - 0.64 cm-1 (S = 0 ground state). Additionally, the radical-radical magnetic exchange contribution was probed with an analogous {ZnII4} square, where a J = -15.9 cm-1 was found. Chapter four extends the application of reduced tetrazine ligands to lanthanide systems. Here we demonstrate that the systematic reduction of the ligand with cobaltacene (CoCp2) led to the formation of a strongly coupled bpytz·−-bpytz·− bridging ligand. Magnetic measurements combined with ab initio calculations confirm unprecedented intramolecular pi-dimerization preventing strong magnetic Dy(III)-bpytz·− communication. Chapter five describes the synthesis and characterization of {LnIII4} (Ln = Dy, Gd and Lu) where the Ln(III) ions are bridged by peripheral bpytz·−. The oxophilicity and high coordination numbers preferred by lanthanides ions lead to the formation of a cubane core made up of metal ions bridged by hydroxy ligands (M3-OH-). Experimental and computational studies were applied to verify the nature and strength of the magnetic interactions between the spin carriers.
Book Synopsis Lanthanides and Actinides in Molecular Magnetism by : Richard A. Layfield
Download or read book Lanthanides and Actinides in Molecular Magnetism written by Richard A. Layfield and published by John Wiley & Sons. This book was released on 2015-01-20 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first reference on this rapidly growing topic provides an essential up-to-date guide to current and emerging trends. A group of international experts has been carefully selected by the editors to cover all the central aspects, with a focus on molecular species while also including industrial applications. The resulting unique overview is a must-have for researchers, both in academia and industry, who are entering or already working in the field.
Book Synopsis Lanthanide Single Molecule Magnets by : Jinkui Tang
Download or read book Lanthanide Single Molecule Magnets written by Jinkui Tang and published by Springer. This book was released on 2015-04-24 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book begins by providing basic information on single-molecule magnets (SMMs), covering the magnetism of lanthanide, the characterization and relaxation dynamics of SMMs and advanced means of studying lanthanide SMMs. It then systematically introduces lanthanide SMMs ranging from mononuclear and dinuclear to polynuclear complexes, classifying them and highlighting those SMMs with high barrier and blocking temperatures – an approach that provides some very valuable indicators for the structural features needed to optimize the contribution of an Ising type spin to a molecular magnet. The final chapter presents some of the newest developments in the lanthanide SMM field, such as the design of multifunctional and stimuli-responsive magnetic materials as well as the anchoring and organization of the SMMs on surfaces. In addition, the crystal structure and magnetic data are clearly presented with a wealth of illustrations in each chapter, helping newcomers and experts alike to better grasp ongoing trends and explore new directions. Jinkui Tang is a professor at Changchun Institute of Applied Chemistry, Chinese Academy of Sciences. Peng Zhang is currently pursuing his PhD at Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, with a specific focus on the molecular magnetism of lanthanide compounds under the supervision of Prof. Jinkui Tang.
Author :Vadapalli Chandrasekhar Publisher :Springer Science & Business Media ISBN 13 :3540225749 Total Pages :349 pages Book Rating :4.5/5 (42 download)
Book Synopsis Inorganic and Organometallic Polymers by : Vadapalli Chandrasekhar
Download or read book Inorganic and Organometallic Polymers written by Vadapalli Chandrasekhar and published by Springer Science & Business Media. This book was released on 2005-01-18 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has its origins in courses taught by the author to various und- graduate and graduate students at the Indian Institute of Technology, K- pur, India. The diversity of inorganic chemistry and its impact on polymer chemistry has been profound. This subject matter has grown considerably in the last decade and the need to present it in a coherent manner to young minds is a pedagogic challenge. The aim of this book is to present to the students an introduction to the developments in Inorganic and - ganometallic polymers. This book is divided into eight chapters. Chapter 1 provides a general overview on the challenges of Inorganic polymer synthesis. This is f- lowed by a survey of organic polymers and also includes some basic f- tures of polymers. Chapters 3-8 deal with prominent families of inorganic and organometallic polymers. Although the target group of this book is the undergraduate and graduate students of chemistry, chemical engineering and materials science it is also hoped that chemists and related scientists in industry would find this book useful. I am extremely thankful to my wife Sudha who not only encouraged me throughout but also drew all the Figures and Schemes of this book. I also thank my children Adithya and Aarathi for their constant concern on the progress of this book. I express my acknowledgment to the editorial team of Springer-Verlag for their cooperation.
Book Synopsis Molecular Nanomagnets by : Dante Gatteschi
Download or read book Molecular Nanomagnets written by Dante Gatteschi and published by OUP Oxford. This book was released on 2011-04-14 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomagnetism is a rapidly expanding area of research which appears to be able to provide novel applications. Magnetic molecules are at the very bottom of the possible size of nanomagnets and they provide a unique opportunity to observe the coexistence of classical and quantum properties. The discovery in the early 90's that a cluster comprising twelve manganese ions shows hysteresis of molecular origin, and later proved evidence of quantum effects, opened a new research area which is still flourishing through the collaboration of chemists and physicists. This book is the first attempt to cover in detail the new area of molecular nanomagnetism, for which no other book is available. In fact research and review articles, and book chapters are the only tools available for newcomers and the experts in the field. It is written by the chemists originators and by a theorist who has been one of the protagonists of the development of the field, and is explicitly addressed to an audience of chemists and physicists, aiming to use a language suitable for the two communities.
Book Synopsis Metal-Organic Frameworks for Biomedical Applications by : Masoud Mozafari
Download or read book Metal-Organic Frameworks for Biomedical Applications written by Masoud Mozafari and published by Woodhead Publishing. This book was released on 2020-03-17 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-Organic Frameworks for Biomedical Applications is a comprehensive, authoritative reference that offers a substantial and complete treatment of published results that have yet to be critically reviewed. It offers a summary of current research and provides in-depth understanding of the role of metal-organic frameworks in biomedical engineering. The title consists of twenty-two chapters presented by leading international researchers in the field. Chapters are arranged by target-application in biomedical engineering, allowing medical and pharmaceutic specialists to translate current materials and engineering science on metal-organic frameworks into their work. Presents the state-of-the art in metal-organic frameworks for biomedical applications Offers comprehensive treatment of metal-organic frameworks that is useful to pharmaceutic and medical experts who are non-specialists in materials science Helps materials scientists and engineers understand the needs of biomedical engineering Critically-reviews published results and current research in the field
Book Synopsis Chemistry of Polymeric Metal Chelates by : Gulzhian I. Dzhardimalieva
Download or read book Chemistry of Polymeric Metal Chelates written by Gulzhian I. Dzhardimalieva and published by Springer. This book was released on 2018-02-13 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Nitrogen NMR by : Michael Witanowski
Download or read book Nitrogen NMR written by Michael Witanowski and published by Springer. This book was released on 2014-01-14 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: To date nitrogen NMR has been discussed in research papers and review articles throughout the scientific literature. It has been our aim in preparing this book to provide a comprehen sive account of the widely spread applications of nitrogen NMR. The relevant literature has been surveyed from the beginnings of NMR until early 1972. The steady annual growth in the number of references cited since 1965 is ample evidence of the ever increasing importance of the subject. Sufficient theoretical and experimental background is given for an understanding of the applications dealt with in later chapters. The basic principles of NMR are developed with a theoretical approach to chemical shifts and spin-spin coupling constants, particular emphasis being given to nitrogen nuclei. Following this the experimental aspects of nitrogen NMR are adequately described. Special emphasis is given to the observable effects of the nuclear quadrupole moment of the 14 N nucleus. It is appro priate that this topic be dealt with in depth since quadrupolar interactions frequently dominate the information available from a study of the 14 N nucleus and other nuclei spin coupled to it. The applications of nitrogen chemical shift data to organic and inorganic molecules are covered in two extensive chapters which include the effects of paramagnetism on nitrogen NMR.
Book Synopsis Coordination Polymers by : Stuart R. Batten
Download or read book Coordination Polymers written by Stuart R. Batten and published by Royal Society of Chemistry. This book was released on 2009 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of coordination polymer research is now vast, & one of the fastest growing areas of chemistry in recent times, with important work being done on a variety of different aspects. This book provides a broad overview of all the major facets of modern coordination polymer science in the one place.
Book Synopsis Thermometry at the Nanoscale by : Luís Dias Carlos
Download or read book Thermometry at the Nanoscale written by Luís Dias Carlos and published by Royal Society of Chemistry. This book was released on 2016 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the fundamentals of measuring temperature at the nanoscale, luminescence-based and non-luminescence based thermometry techniques, and applications.
Book Synopsis Simple Models of Magnetism by : Ralph Skomski
Download or read book Simple Models of Magnetism written by Ralph Skomski and published by Oxford University Press on Demand. This book was released on 2008-01-17 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents introductory appendices and panels on quantum mechanics, statistical mechanics, and other topics.
Book Synopsis Electron Paramagnetic Resonance of Transition Ions by : A. Abragam
Download or read book Electron Paramagnetic Resonance of Transition Ions written by A. Abragam and published by OUP Oxford. This book was released on 2012-06-28 with total page 927 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a reissue of a classic Oxford text, and provides a comprehensive treatment of electron paramagnetic resonance of ions of the transition groups. The emphasis is on basic principles, with numerous references to publications containing further experimental results and more detailed developments of the theory. An introductory survey gives a general understanding, and a general survey presents such topics as the classical and quantum resonance equations, the spin-Hamiltonian, Endor, spin-spin and spin-lattice interactions, together with an outline of the known behaviour of ions of each of the five transition groups, at the experimentalist's level. Finally a theoretical survey, using group theory and symmetry properties, discusses the fundamentals of the theory of paramagnetism.
Book Synopsis Spin-Crossover Materials by : Malcolm A. Halcrow
Download or read book Spin-Crossover Materials written by Malcolm A. Halcrow and published by John Wiley & Sons. This book was released on 2013-01-07 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: The phenomenon of spin-crossover has a large impact on the physical properties of a solid material, including its colour, magnetic moment, and electrical resistance. Some materials also show a structural phase change during the transition. Several practical applications of spin-crossover materials have been demonstrated including display and memory devices, electrical and electroluminescent devices, and MRI contrast agents. Switchable liquid crystals, nanoparticles, and thin films of spin-crossover materials have also been achieved. Spin-Crossover Materials: Properties and Applications presents a comprehensivesurvey of recent developments in spin-crossover research, highlighting the multidisciplinary nature of this rapidly expanding field. Following an introductory chapter which describes the spin-crossover phenomenon and historical development of the field, the book goes on to cover a wide range of topics including Spin-crossover in mononuclear, polynuclear and polymeric complexes Structure: function relationships in molecular spin-crossover materials Charge-transfer-induced spin-transitions Reversible spin-pairing in crystalline organic radicals Spin-state switching in solution Spin-crossover compounds in multifunctional switchable materials and nanotechnology Physical and theoretical methods for studying spin-crossover materials Spin-Crossover Materials: Properties and Applications is a valuable resource for academic researchers working in the field of spin-crossover materials and topics related to crystal engineering, solid state chemistry and physics, and molecular materials. Postgraduate students will also find this book useful as a comprehensive introduction to the field.
Book Synopsis Ion Exchange Technology I by : Inamuddin Dr.
Download or read book Ion Exchange Technology I written by Inamuddin Dr. and published by Springer Science & Business Media. This book was released on 2012-06-02 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion-exchange Technology I: Theory and Materials describes the theoretical principles of ion-exchange processes. More specifically, this volume focuses on the synthesis, characterization, and modelling of ion-exchange materials and their associated kinetics and equilibria. This title is a highly valuable source not only to postgraduate students and researchers but also to industrial R&D specialists in chemistry, chemical, and biochemical technology as well as to engineers and industrialists.
Book Synopsis Molecular Cluster Magnets by : Richard Winpenny
Download or read book Molecular Cluster Magnets written by Richard Winpenny and published by World Scientific. This book was released on 2012 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work covers new developments in the field of molecular nanomagnetism, complementing previous books in this area (for example the volume by Gatteschi, Sessoli and Villain on Single Molecule Magnets). The book is written by experts in the field and is intended as a compilation of critical reviews of new areas rather than a comprehensive text.
Book Synopsis Biomolecular NMR Spectroscopy by : Andrew J. Dingley
Download or read book Biomolecular NMR Spectroscopy written by Andrew J. Dingley and published by IOS Press. This book was released on 2011 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear Magnetic Resonance (NMR) spectroscopy is the most powerful technique for characterization of biomolecular structures at atomic resolution in the solution state. This timely book, entitled "Biomolecular NMR Spectroscopy," focuses on the latest state-of-the-art NMR techniques for characterization of biological macromolecules in the solid and solution state. The editors, Dr. Andrew Dingley (University of Auckland, New Zealand) and Dr. Steven Pascal (Massey University, New Zealand) have organized the book into four sections, covering the following topics: sample preparation, structure and dynamics of proteins, structure and dynamics of nucleic acids and protein-nucleic acid complexes, and rapid and hybrid techniques--
Book Synopsis Molecular Nanomagnets and Related Phenomena by : Song Gao
Download or read book Molecular Nanomagnets and Related Phenomena written by Song Gao and published by Springer. This book was released on 2015-02-20 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Structure and Bonding publishes critical reviews on topics of research concerned with chemical structure and bonding. The scope of the series spans the entire Periodic Table and addresses structure and bonding issues associated with all of the elements. It also focuses attention on new and developing areas of modern structural and theoretical chemistry such as nanostructures, molecular electronics, designed molecular solids, surfaces, metal clusters and supramolecular structures. Physical and spectroscopic techniques used to determine, examine and model structures fall within the purview of Structure and Bonding to the extent that the focus is on the scientific results obtained and not on specialist information concerning the techniques themselves. Issues associated with the development of bonding models and generalizations that illuminate the reactivity pathways and rates of chemical processes are also relevant. The individual volumes in the series are thematic. The goal of each volume is to give the reader, whether at a university or in industry, a comprehensive overview of an area where new insights are emerging that are of interest to a larger scientific audience. Thus each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years should be presented using selected examples to illustrate the principles discussed. A description of the physical basis of the experimental techniques that have been used to provide the primary data may also be appropriate, if it has not been covered in detail elsewhere. The coverage need not be exhaustive in data, but should rather be conceptual, concentrating on the new principles being developed that will allow the reader, who is not a specialist in the area covered, to understand the data presented. Discussion of possible future research directions in the area is welcomed. Review articles for the individual volumes are invited by the volume editors. Readership: research scientists at universities or in industry, graduate students Special offer for all customers who have a standing order to the print version of Structure and Bonding, we offer free access to the electronic volumes of the Series published in the current year via SpringerLink.
