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Synthesis And Characterization Of Pyridine And 4 Phenylpyridine Complexes Containing The Bis Diimine Carbonyl Osmiumii Moiety
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Book Synopsis Synthesis and Characterization of Pyridine and 4-phenylpyridine Complexes Containing the Bis-(diimine)-carbonyl-osmium(II) Moiety by : Carmen Leung
Download or read book Synthesis and Characterization of Pyridine and 4-phenylpyridine Complexes Containing the Bis-(diimine)-carbonyl-osmium(II) Moiety written by Carmen Leung and published by . This book was released on 2010 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Bis-Bipyridine-Carbonyl-Ruthenium (II) Complexes with Varying Pyridine Ligands by : Andres Rodriguez
Download or read book Synthesis and Characterization of Bis-Bipyridine-Carbonyl-Ruthenium (II) Complexes with Varying Pyridine Ligands written by Andres Rodriguez and published by . This book was released on 2018 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rational Design, Synthesis and Characterization of Amide Functionalized Pyridine and Benzimidazole Transition Metal Complexes by : Samuel S. K. Asem
Download or read book Rational Design, Synthesis and Characterization of Amide Functionalized Pyridine and Benzimidazole Transition Metal Complexes written by Samuel S. K. Asem and published by . This book was released on 2011 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study expands our efforts to make a new class of Pt (II) compounds analogous to cisplatin and its derivatives using sterically hindered ligands. Pt compounds in this series have been synthesized using specially designed pyridine and benzimidazole ligands. These heterocycles, amide functionalized at position 2 with aryl and alkyl pendants, rapidly change their mode of coordination depending on the pH of the medium. These ligands, synthesized using condensation chemistry, also coordinate to Co(II), Ni(H), Cu(lI), and Zn(1I) generally as anionic bis-chelates through the benzimidazole nitrogen and the carbonyl oxygen, creating a four-coordinate complex with the exception of an unusual trigonal bipyramidal Zn(H) complex. I H NMR temperature studies reveal that these ligands interconvert between imide and amide isomers and that electron withdrawing pendants favor amide isomers. Crystal structures of Co(II) and Ni(1I) complexes of N-( I-methylbenzimidazol-2-yl)cyclohexanecarboxamide, for example, show two ligands bind per metal ion when reacted with acetate and nitrate salts. The bischelates of these Ni(1I) complexes also show expansions of their coordination spheres from four to five-coordinate. Furthermore, these Ni(II) bis-chelated complexes possess square planar or distorted 4-coordinate geometries. The synthesis and properties of several new Pt (II) complexes containing these ligands will be presented. A second generation and novel complex class containing metal-binding, linker and recognition domains is reported. Both classes of Pt complexes were obtained using a synthetic methodology which favors the cis isomers. The second generation complex crystallizes in the monoclinic space group P2dn with lattice dimensions a = 17.7393(5) A, b = 11.4632(3) A, c = 19.3959(5) A and ~ = 99.794(3)°. These complexes have been characterized using physical methods that include X-ray crystallography, IH &13C NMR, Mass spectrometry, UV and IR spectroscopies. Complexes similar in structure to cisplatin and carboplatin show varying cytotoxic properties toward different cancer cell lines. Additionally, some of these new Pt complexes show comparable and promising cytotoxicity against prostate cancer cell lines.
Book Synopsis Synthesis and Characterization of Transitional Metal Pyridine Containing Complexes with Both Catalytic and Therapeutic Applications by : Magy Amir Maurice Mekhail
Download or read book Synthesis and Characterization of Transitional Metal Pyridine Containing Complexes with Both Catalytic and Therapeutic Applications written by Magy Amir Maurice Mekhail and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pyridinophanes derived from pyclen are the focus of many studies as biological mimics, chelators, and catalytic precursors. Therefore, the desire to tune the reactivity of metal pyridinophane complexes has inspired modifications that include expansion of ring size and substitutions to the N-atoms. However, substitution on the pyridine moiety is largely unexplored to date. Herein, new synthetic strategies for pyclen-congeners bearing electron donating and electron withdrawing groups are introduced, resulting in doubling the number of pyridine functionalized molecules in literature. Further, the influence of such modifications on properties and reactivity of two metals (Fe(III) and Cu(II)) is described. For the Fe(III) system, 4-substitution of the pyridine ring successfully provides a regulatory handle on the electronic properties and the catalytic C-C coupling activity of the respective Fe complexes. These are the first examples of a structure-activity relationship study with the impact of electronic properties decoupled from structural properties and investigated. The Fe(III) system was also explored in a catalase mimetic study to determine the role of ligand design on the activity of the metal center through changing electronic properties and rigidity of the ligand. Varying the electronic properties of the ligand has a minor effect on catalase activity, but changes to the geometry of the complex have significant impacts on the system. This activity was also successfully observed to cellular models. The Cu(II) system was investigated as a superoxide dismutase mimic. Cu(II) Pyclen complexes, specifically, has been shown to match its coordination environment and to have high binding affinity. My studies highlight that modifications to the pyridine ring of the ligand can tune the redox potential, while exhibiting high binding stabilities and retaining the coordination environment. In fact, one of the complexes studied exhibits one of the highest SOD activities reported to date, which is hypothesized to be the result of not only the electronic properties of the Cu center but also the high binding stability exhibited by this complex. Altogether, this work focused on functionalizing the pyridine ring in pyridinophanes and studying the effect of the modifications on the electronics of metal complexes and their reactivity with both catalytic and potential therapeutic application.
Book Synopsis Synthesis and Characterization of Phenyl Pyridine Containing Selenium DerivativesS by : Thirupathi Nomula
Download or read book Synthesis and Characterization of Phenyl Pyridine Containing Selenium DerivativesS written by Thirupathi Nomula and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis, Characterization, and Reactivity Studies of Pyridine Bis(anilide) Iron Complexes by : Edward Charles Weintrob
Download or read book Synthesis, Characterization, and Reactivity Studies of Pyridine Bis(anilide) Iron Complexes written by Edward Charles Weintrob and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Light-Emitting Electrochemical Cells by : Rubén D. Costa
Download or read book Light-Emitting Electrochemical Cells written by Rubén D. Costa and published by Springer. This book was released on 2017-07-31 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the recent achievements towards the next generation of Light-emitting electrochemical cells (LEC). Its first part focus on the definition, history and mechanism of LEC, going then to concepts and challenges and, finally, giving the reader examples of current application of new electroluminescent materials. The chapters are written by different international groups working on LEC.
Book Synopsis Luminescent and Photoactive Transition Metal Complexes as Biomolecular Probes and Cellular Reagents by : Kenneth Kam-Wing Lo
Download or read book Luminescent and Photoactive Transition Metal Complexes as Biomolecular Probes and Cellular Reagents written by Kenneth Kam-Wing Lo and published by Springer. This book was released on 2015-06-30 with total page 266 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.
Book Synopsis Molecular Materials by : Duncan W. Bruce
Download or read book Molecular Materials written by Duncan W. Bruce and published by John Wiley & Sons. This book was released on 2011-04-04 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: “... the book does an excellent job of putting together several different classes of materials. Many common points emerge, and the book may facilitate the development of hybrids in which the qualities of the “parents” are enhanced.” –Angew. Chem. Int. Ed. 2011 With applications in optoelectronics and photonics, quantum information processing, nanotechnology and data storage, molecular materials enrich our daily lives in countless ways. These materials have properties that depend on their exact structure, the degree of order in the way the molecules are aligned and their crystalline nature. Small, delicate changes in molecular structure can totally alter the properties of the material in bulk. There has been increasing emphasis on functional metal complexes that demonstrate a wide range of physical phenomena. Molecular Materials represents the diversity of the area, encapsulating magnetic, optical and electrical properties, with chapters on: Metal-Based Quadratic Nonlinear Optical Materials Physical Properties of Metallomesogens Molecular Magnetic Materials Molecular Inorganic Conductors and Superconductors Molecular Nanomagnets Structured to include a clear introduction, a discussion of the basic concepts and up-to-date coverage of key aspects, each chapter provides a detailed review which conveys the excitement of work in that field. Additional volumes in the Inorganic Materials Series: Low-Dimensional Solids | Molecular Materials | Porous Materials | Energy Materials
Download or read book Click Triazoles written by Janez Košmrlj and published by Springer. This book was released on 2012-05-30 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: B. R. Buckley and H. Heaney: Mechanistic Investigations of Copper(I)- Catalyzed Alkyne–Azide Cycloaddition Reactions.- J. D. Crowley and D. A. McMorran: “Click-Triazole” Coordination Chemistry: Exploiting 1,4-Disubstituted-1,2,3-Triazoles as Ligands.- S. Lee and A. H. Flood: Binding Anions in Rigid and Reconfigurable Triazole Receptors.- M. Watkinson: Click Triazoles as Chemosensors.- H.-F. Chow, C.-M. Lo and Y. Chen: Triazole-Based Polymer Gels.- T. Zheng, S. H. Rouhanifard, A. S. Jalloh, P. Wu: Click Triazoles for Bioconjugation.- S. Mignani, Y. Zhou, T. Lecourt and L. Micouin: Recent Developments in the Synthesis 1,4,5-Trisubstituted Triazoles.
Book Synopsis Photochemistry and Photophysics of Coordination Compounds by : Hartmut Yersin
Download or read book Photochemistry and Photophysics of Coordination Compounds written by Hartmut Yersin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Seventh International Symposium on the Photochemistry and Photophysics of Coordination Compounds Elmau/FRG, March 29-April 2, 1987
Book Synopsis Biomedical Applications of Metals by : Mahendra Rai
Download or read book Biomedical Applications of Metals written by Mahendra Rai and published by Springer. This book was released on 2018-02-24 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focused more specifically on the recent advances in applications of various metals and their complexes used in biomedicine, particularly in the diagnosis and treatment of chronic diseases. The editors give equal importance to other key aspects such as toxicological issues and safety concerns. The application of metals in the biomedical field is highly interdisciplinary and has a broad appeal across all biomedical specialties. Biomedical Applications of Metals is particularly focused on covering the role of metals in medicine and the development of novel therapeutic products and solutions in the form of alternative medicines, and some topics on Indian traditional medicine i.e., “Ayurveda”. In Section I, the book discusses the role of metals in medicines and include chapters on nanoparticles, noble metals, medical devices, copper. selenium, silver, and microbial pathogens; while Section II includes topics on metals toxicity including heavy metals, carcinogens, cancer therapy, Bhasma’s and chelating agents used in Ayurveda, and biochemical and molecular targets including actions of metals. These new and emerging concepts of applications of metals in medicine, their crucial role in management of microbial resistance, and their use in the treatment of various chronic diseases is essential information for toxicologists, and clinical and biomedical researchers.
Book Synopsis Metallo-Supramolecular Polymers by : Masayoshi Higuchi
Download or read book Metallo-Supramolecular Polymers written by Masayoshi Higuchi and published by Springer Nature. This book was released on 2019-11-12 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the synthesis, electrochemical and photochemical properties, and device applications of metallo-supramolecular polymers, new kinds of polymers synthesized by the complexation of metal ions and organic ditopic ligands. Their electrochemical and photochemical properties are also interesting and much different from conventional organic polymers. The properties come from the electronic intra-chain interaction between the metal ions and the ligands in the polymer chain. In this book, for example, the electrochromism that the Fe(II)-based metallo-supramolecular polymer exhibits is described: the blue color of the polymer film disappears by the electrochemical oxidation of Fe(II) ions to Fe(III) and the colorless film becomes blue again by the electrochemical reduction of Fe(III) to Fe(II). The electrochromism is explained by the disappearance/appearance of the metal-to-ligand charge transfer absorption. The electrochromic properties are applicable to display devices such as electronic paper and smart windows.
Book Synopsis Pincer Compounds by : David Morales-Morales
Download or read book Pincer Compounds written by David Morales-Morales and published by Elsevier. This book was released on 2018-04-11 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pincer Compounds: Chemistry and Applications offers valuable state-of-the-art coverage highlighting highly active areas of research—from mechanistic work to synthesis and characterization. The book focuses on small molecule activation chemistry (particularly H2 and hydrogenation), earth abundant metals (such as Fe), actinides, carbene-pincers, chiral catalysis, and alternative solvent usage. The book covers the current state of the field, featuring chapters from renowned contributors, covering four continents and ranging from still-active pioneers to new names emerging as creative strong contributors to this fascinating and promising area. Over a decade since the publication of Morales-Morales and Jensen's The Chemistry of Pincer Compounds (Elsevier 2007), research in this unique area has flourished, finding a plethora of applications in almost every single branch of chemistry—from their traditional application as very robust and active catalysts all the way to potential biological and pharmaceutical applications. - Describes the chemistry and applications of this important class of organometallic and coordination compounds - Includes contributions from global leaders in the field, featuring pioneers in the area as well as emerging experts conducting exciting research on pincer complexes - Highlights areas of promising and active research, including small molecule activation, earth abundant metals, and actinide chemistry
Book Synopsis Handbook of Photochemistry by : Marco Montalti
Download or read book Handbook of Photochemistry written by Marco Montalti and published by CRC Press. This book was released on 2006-02-21 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the second edition of this handbook in 1993, the field of photochemical sciences has continued to expand across several disciplines including organic, inorganic, physical, analytical, and biological chemistries, and, most recently, nanosciences. Emphasizing the important role light-induced processes play in all of these fie
Book Synopsis Organotransition-Metal Chemistry by : Yoshio Ishii
Download or read book Organotransition-Metal Chemistry written by Yoshio Ishii and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesis of Organotransition Metals.- Metallocarboranes: Past, Present, and Future.- Novel Rhodium and Palladium Complexes with Benzoyl and Thiobenzoyl Isocyanates as Ligands.- Polycyanovinyl Transition Metal Derivatives.- A New Preparation of Organocopper(I)-Isonitrile Complexes and Their Reactions.- An Unusual Behavior of?-Vinyl Alcohol Complexes of Transition Metals.- The Mode of Formation of Transition Metal to Carbon Bonds by Oxidative Addition.- Organoactinides: Coordination Patterns and Chemical Reactivity.- Recent Developments in Chemistry of Organolanthanides and Organoactinides.- C.
Book Synopsis Photochemistry and Photophysics of Coordination Compounds II by : Vincenzo Balzani
Download or read book Photochemistry and Photophysics of Coordination Compounds II written by Vincenzo Balzani and published by Springer. This book was released on 2007-08-07 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photochemistry (a term that broadly speaking includes photophysics) is abranchofmodernsciencethatdealswiththeinteractionoflightwithmatter and lies at the crossroadsof chemistry, physics, and biology. However, before being a branch of modern science, photochemistry was (and still is today), an extremely important natural phenomenon. When God said: “Let there be light”, photochemistry began to operate, helping God to create the world as wenowknowit.Itislikelythatphotochemistrywasthesparkfortheoriginof life on Earth and played a fundamental role in the evolution of life. Through the photosynthetic process that takes place in green plants, photochemistry is responsible for the maintenance of all living organisms. In the geological past photochemistry caused the accumulation of the deposits of coal, oil, and naturalgasthat wenowuseasfuels.Photochemistryisinvolved inthecontrol ofozoneinthestratosphereandinagreatnumber ofenvironmentalprocesses thatoccurintheatmosphere,inthesea,andonthesoil.Photochemistryisthe essenceoftheprocessofvisionandcausesavarietyofbehavioralresponsesin living organisms. Photochemistry as a science is quite young; we only need to go back less than one century to ?nd its early pioneer [1]. The concept of coordination compound is also relatively young; it was established in 1892, when Alfred Werner conceived his theory of metal complexes [2]. Since then, the terms coordination compound and metal complex have been used as synonyms, even if in the last 30 years, coordination chemistry has extended its scope to the binding ofall kinds of substrates [3, 4].
