Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Ligand Design For Heterometallic 3d Metallacrown Complexes full books in PDF, epub, and Kindle. Read online Ligand Design For Heterometallic 3d Metallacrown Complexes ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Gamer Christoph
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (138 download)
Download or read book Ligand Design for Heterometallic 3d Metallacrown Complexes written by Gamer Christoph and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christoph Gamer
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (138 download)
Download or read book Ligand Design for Heterometallic 3d Metallacrown Complexes written by Christoph Gamer and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two decades of research on single molecule magnets (SMMs) led to multiple concepts to reach one of the most ambitious goals in molecular magnetism, a high energy barrier (Ueff ) for the magnetization reversal of a single molecule. This energy barrier is dependent on the spin ground state (S) and the axial magnetoanisotropy (D) of the molecule. Previous research projects led to complexes with remarkably high S or D values but only few combining both. Up to now, a systematical manipulation and control of S and D on a molecular scope has not been accomplished yet. Herein, a systematic approach to obtain a high spin ground state accompanied with high molecular magnetic anisotropy is presented using the versatile compound class of metallacrowns (MCs). The magnetic director approach has proven to effectively yield 12-MC-4 structures with high spin ground states. In addition, the planar crown scaffold represents an ideal framework to align the Jahn-Teller axes of ring forming metal ions with high single ion anisotropy. Prerequisites for an effective use of both concepts are the ability of the central guest ion to take part in strong magnetic exchange coupling and a tuneable anisotropic electron distribution of the ring forming metal ions. Hence, 3d transition metal ions express themselves as the optimal choice. Systematic synthesis of heterometallic MCs requires varying selectivity of the central and the ring coordination pockets. To fulfill this condition, two distinct ligand optimizations were followed in this work. The donor atoms on apical coordination sites of the crown metal ions were varied yielding to a different binding affinity according to Pearson's HSAB concept. Moreover, additional coordinating functionalities were introduced in established MC ligand systems, like amidoximes, in order to adjust the whole coordination environment of the crown forming metal ions. According to these approaches, several new 3d MC compounds were synthesized and analyzed using infrared spectroscopy, single crystal X-ray diffraction and SQUID magnetometry. Synthesis and the use of 2-methylmercaptobenzohydroxamic acid led to the isolation of the very first cadmium(II) metallacrown opening new perspectives for an improvement of the luminescence properties of this compound class. To highlight some of the results, a mixed valent cobalt(II/III) MC, double decker and a discrete Cu(II) MC and even two manganese double decker MCs are reported in this work.
Author : Mark Stradiotto
Publisher : John Wiley & Sons
ISBN 13 : 1118839811
Total Pages : 448 pages
Book Rating : 4.1/5 (188 download)
Download or read book Ligand Design in Metal Chemistry written by Mark Stradiotto and published by John Wiley & Sons. This book was released on 2016-09-01 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of ancillary ligands used to modify the structural and reactivity properties of metal complexes has evolved into a rapidly expanding sub-discipline in inorganic and organometallic chemistry. Ancillary ligand design has figured directly in the discovery of new bonding motifs and stoichiometric reactivity, as well as in the development of new catalytic protocols that have had widespread positive impact on chemical synthesis on benchtop and industrial scales. Ligand Design in Metal Chemistry presents a collection of cutting-edge contributions from leaders in the field of ligand design, encompassing a broad spectrum of ancillary ligand classes and reactivity applications. Topics covered include: Key concepts in ligand design Redox non-innocent ligands Ligands for selective alkene metathesis Ligands in cross-coupling Ligand design in polymerization Ligand design in modern lanthanide chemistry Cooperative metal-ligand reactivity P,N Ligands for enantioselective hydrogenation Spiro-cyclic ligands in asymmetric catalysis This book will be a valuable reference for academic researchers and industry practitioners working in the field of ligand design, as well as those who work in the many areas in which the impact of ancillary ligand design has proven significant, for example synthetic organic chemistry, catalysis, medicinal chemistry, polymer science and materials chemistry.
Author : Hua Han
Publisher :
ISBN 13 :
Total Pages : 522 pages
Book Rating : 4.:/5 (18 download)
Download or read book Ligand Designs for Polynuclear and Heterometallic Complexes written by Hua Han and published by . This book was released on 2007 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tim Storr
Publisher : John Wiley & Sons
ISBN 13 : 1118697898
Total Pages : 650 pages
Book Rating : 4.1/5 (186 download)
Download or read book Ligand Design in Medicinal Inorganic Chemistry written by Tim Storr and published by John Wiley & Sons. This book was released on 2014-06-12 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing the potency of therapeutic compounds, while limiting side-effects, is a common goal in medicinal chemistry. Ligands that effectively bind metal ions and also include specific features to enhance targeting, reporting, and overall efficacy are driving innovation in areas of disease diagnosis and therapy. Ligand Design in Medicinal Inorganic Chemistry presents the state-of-the-art in ligand design for medicinal inorganic chemistry applications. Each individual chapter describes and explores the application of compounds that either target a disease site, or are activated by a disease-specific biological process. Ligand design is discussed in the following areas: Platinum, Ruthenium, and Gold-containing anticancer agents Emissive metal-based optical probes Metal-based antimalarial agents Metal overload disorders Modulation of metal-protein interactions in neurodegenerative diseases Photoactivatable metal complexes and their use in biology and medicine Radiodiagnostic agents and Magnetic Resonance Imaging (MRI) agents Carbohydrate-containing ligands and Schiff-base ligands in Medicinal Inorganic Chemistry Metalloprotein inhibitors Ligand Design in Medicinal Inorganic Chemistry provides graduate students, industrial chemists and academic researchers with a launching pad for new research in medicinal chemistry.
Author : Oleh Stetsiuk
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (19 download)
Download or read book Homo- and Heterometallic 3d-metal Complexes with N- and N,O-donor Ligands written by Oleh Stetsiuk and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis is devoted to the synthesis of homo- and heterometallic 3d-metal complexes with Schiff base ligands or derivatives of 1,2,4,5- tetrazine, together with the investigation of their structural and physico-chemical properties. This work can be divided in three parts. In the first part we have been mainly focused on the Schiff base ligands, derivatives of the salicylaldehyde and aminoalcohols. Thirteen heterometallic complexes were obtained and fully characterized. It has been shown that the synthesized compounds possess catalytic activity in the photochemical water oxidation, exhibit photoconducting properties in polymeric composites and can be used for the development of multifunctional materials of wide use. The second part describes the functionalization of Schiff base ligands by the introduction into their structure of electroactive tetrathiafulvalene and dithiolate moieties. Two new families of ligands were synthesized and characterized. The series of radicalcation salts and homo- and heterometallic dithiolene complexes together with the investigation of their physical properties have been described. The last part is devoted to the tetrazine based ligands. The main advantages of the tetrazine ring have been discussed. Two new ligands, derivative of picolylamine and their mono- and binuclear 3d-metal complexes are reported. In conclusion, perspectives of further research related to the described results were highlighted.
Author :
Publisher :
ISBN 13 :
Total Pages : 139 pages
Book Rating : 4.:/5 (129 download)
Download or read book Syntheses, Structures, and Magnetic Properties of Polynuclear Heterometallic 3d-4f Complexes with Triketone Ligand written by and published by . This book was released on 2021 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Luis Raúl Castañeda-Perea
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (129 download)
Download or read book Imidoyl Amidine Ligands written by Luis Raúl Castañeda-Perea and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ligand design in general enables the formation of coordination compounds with multiple functionalities within a single framework. To date, two of the most widely studied ligands are 2,2':6',2''-terpyridine (terpy) and acetylacetone (acac), whose tridentate and bidentate coordination pockets, respectively, enables the formation of metallic complexes with various geometries. The Brusso group had been incorporating imidoyl amidine (ImAm) ligands to build different materials such as organic radicals and fluorescent materials. In particular, the ligands N-2-pyridylimidoyl-2-pyridylamidine (Py2ImAm) and N-2-pyrimidylimidoyl-2-pyrimidylamidine (Pm2ImAm) were recently synthesized and have great appeal to build metallic complexes, as they poses two coordination sites similar to those in terpy and acac. The work presented herein represents the first studies involving the coordination of Py2ImAm and Pm2ImAm as discrete ligands. Our results demonstrate the versatility of these ligand frameworks, in which discrete mononuclear complexes, homometallic and heterometallic polynuclear complexes may be realized. Chapter one serves as a brief introduction to transition metal chemistry and has a comprehensive review of the coordination chemistry of the ImAm ligand framework. In chapter two, the selective coordination of first row transition metals into the bidentate or tridentate sites of Py2ImAm is explored. The formation of these mononuclear complexes is acid-base driven, where a weak acid induces coordination to the tridentate site and a weak base leads to coordination in the bidentate site. Coordination to both sides of Pm2ImAm with manganese or iron is explored in chapter three. The results show the formation of unusual tetranuclear complexes with the metal ions in both low spin and high spin configurations. Chapter four covers the coordination to cobalt, and the formation of polynuclear complexes with different geometries using Pm2ImAm. The magnetochemistry of these cobalt polynuclear complexes is also presented and reveal a single molecule magnet behaviour for one of the complexes. Finally, in chapter five, a one-pot synthesis of copper-manganese heterometallic complexes is presented. Overall, these imidoyl amidine ligands are able to build complexes with different geometries, different electronic configurations (i.e. low or high spin), and different metal ions. These results show a great versatility of ImAm ligands and suggest the future use of these ligands by other research groups.
Author : Curtis M. Zaleski
Publisher : Springer Nature
ISBN 13 : 3031085760
Total Pages : 388 pages
Book Rating : 4.0/5 (31 download)
Download or read book Advances in Metallacrown Chemistry written by Curtis M. Zaleski and published by Springer Nature. This book was released on 2022-09-03 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on recent developments in metallacrown chemistry. While the field was established in 1989 by Professor Vincent Pecoraro and numerous applications had been proposed, there has been a recent surge in the practical applications for this class of molecules. Written by leaders in the metallacrown chemistry field this book addresses recent developments. The single-molecule magnet properties of metallacrowns are presented along with discussions on their ability to bind DNA, as well as their potency to serve as building blocks for supramolecular structures. The volume is not only intended for those who work directly in the field of metallacrowns but it also appeals to those working in the aligned fields of metallamacrocyclic chemistry, self-assembly chemistry, and supramolecular chemistry. This dedicated volume serves as an encyclopedic reference for those wishing to gain insight into the field.
Author : Natalia Domracheva
Publisher : Elsevier
ISBN 13 : 0128135956
Total Pages : 492 pages
Book Rating : 4.1/5 (281 download)
Download or read book Novel Magnetic Nanostructures written by Natalia Domracheva and published by Elsevier. This book was released on 2018-06-14 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Novel Magnetic Nanostructures: Unique Properties and Applications reviews the synthesis, design, characterization and unique properties of emerging nanostructured magnetic materials. It discusses the most promising and relevant applications, including data storage, spintronics and biomedical applications. Properties investigated include electronic, self-assembling, multifunctional, and magnetic properties, along with magnetic phenomena. Structures range from magnetic nanoclusters, nanoparticles, and nanowires, to multilayers and self-assembling nanosystems. This book provides a better understanding of the static and dynamic magnetism in new nanostructures for important applications. - Provides an overview of the latest research on novel magnetic nanostructures, including molecular nanomagnets, metallacrown magnetic nanostructures, magnetic dendrimers, self-assembling magnetic structures, multifunctional nanostructures, and much more - Reviews the synthesis, design, characterization and detection of useful properties in new magnetic nanostructures - Highlights the most relevant applications, including spintronic, data storage and biomedical applications
Author : Dalton Discussion (5, 2003, Noordwijkerhout)
Publisher :
ISBN 13 :
Total Pages : 2092 pages
Book Rating : 4.:/5 (265 download)
Download or read book Ligand Design for Functional Complexes written by Dalton Discussion (5, 2003, Noordwijkerhout) and published by . This book was released on 2003 with total page 2092 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arwa Mohamad Khaled
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (112 download)
Download or read book Heterometallic Complexes with Lactams and Related Ligands written by Arwa Mohamad Khaled and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jinkui Tang
Publisher : Springer
ISBN 13 : 3662469995
Total Pages : 219 pages
Book Rating : 4.6/5 (624 download)
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 : Fritz Vögtle
Publisher :
ISBN 13 :
Total Pages : 264 pages
Book Rating : 4.:/5 (318 download)
Download or read book Dendrimers written by Fritz Vögtle and published by . This book was released on 1998 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Malgorzata Holynska
Publisher : John Wiley & Sons
ISBN 13 : 3527343210
Total Pages : 448 pages
Book Rating : 4.5/5 (273 download)
Download or read book Single-Molecule Magnets written by Malgorzata Holynska and published by John Wiley & Sons. This book was released on 2019-02-11 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concise overview of synthesis and characterization of single molecule magnets Molecular magnetism is explored as an alternative to conventional solid-state magnetism as the basis for ultrahigh-density memory materials with extremely fast processing speeds. In particular single-molecule magnets (SMM) are in the focus of current research, both because of their intrinsic magnetization properties, as well as because of their potential use in molecular spintronic devices. SMMs are fascinating objects on the example of which one can explain many concepts. Single-Molecule Magnets: Molecular Architectures and Building Blocks for Spintronics starts with a general introduction to single-molecule magnets (SMM), which helps readers to understand the evolution of the field and its future. The following chapters deal with the current synthetic methods leading to SMMs, their magnetic properties and their characterization by methods such as high-field electron paramagnetic resonance, paramagnetic nuclear magnetic resonance, and magnetic circular dichroism. The book closes with an overview of radical-bridged SMMs, which have shown application potential as building blocks for high-density memories. Covers a hot topic – single-molecule magnetism is one of the fastest growing research fields in inorganic chemistry and materials science Provides researchers and newcomers to the field with a solid foundation for their further work Single-Molecule Magnets: Molecular Architectures and Building Blocks for Spintronics will appeal to inorganic chemists, materials scientists, molecular physicists, and electronics engineers interested in the rapidly growing field of study.
Author : Francesca Garello
Publisher : MDPI
ISBN 13 : 3036502343
Total Pages : 206 pages
Book Rating : 4.0/5 (365 download)
Download or read book Smart Tools for Smart Applications written by Francesca Garello and published by MDPI. This book was released on 2021-03-10 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, micro- and nanosystems with magnetic properties have been extensively investigated in many fields, ranging from physics to medicine. The research in these areas has lately shown that if the magnetic compounds are opportunely functionalized and modified with moieties and specific functional groups, a plethora of challenging multidisciplinary applications is available, including the development of magnetically controlled particles, stimuli-responsive materials, magnetically guided chemical/drug-delivery systems, sensors, spintronics, separation and purification of contaminated groundwater and soils, ferrofluids and magnetorheological fluids, contrast agents for MRI, and internal sources of heat for the thermoablation of cancer. Magnetic compounds have been found to be highly selective and effective in all these application fields, from the molecular level to the microscale. This book aims at underlining the latest advances in the field of magnetic compounds, nanosystems, and materials, covering a large variety of topics related to novel synthesis and functionalization methods and the properties, applications, and use of magnetic systems in chemistry, materials science, diagnostics, and medical therapy.
Author : Zhiping Zheng
Publisher : Springer
ISBN 13 : 3662533030
Total Pages : 343 pages
Book Rating : 4.6/5 (625 download)
Download or read book Recent Development in Clusters of Rare Earths and Actinides: Chemistry and Materials written by Zhiping Zheng and published by Springer. This book was released on 2016-10-21 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
