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Spectral Methods In Transition Metal Complexes

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Spectral Methods in Transition Metal Complexes

Spectral Methods in Transition Metal Complexes Book
Author : K. Sridharan
Publisher : Elsevier
Release : 2016-02-13
ISBN : 0128096543
Language : En, Es, Fr & De

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Book Description :

Spectral Methods in Transition Metal Complexes provides a conceptual understanding on how to interpret the optical UV-vis, vibrational EPR, and NMR spectroscopy of transition metal complexes. Metal complexes have broad applications across chemistry in the areas of drug discovery, such as anticancer drugs, sensors, special materials for specific requirements, and catalysis, so a thorough knowledge in preparation and characterization of metal complexes, while niche, is critical. Accessible to both the seasoned researcher and the graduate student alike, this book provides readers with a single source of content that addresses spectral methods in transition metal complexes. Provides readers with a single reference on metal complexes and coordination compounds Contains more than 100 figures, tables, and illustrations to aid in the retention of key concepts Authored by a scientist with nearly 40 years of experience in research and instruction

Spectroscopy in Inorganic Chemistry

Spectroscopy in Inorganic Chemistry Book
Author : C.N.R. Rao
Publisher : Elsevier
Release : 2012-12-02
ISBN : 032315090X
Language : En, Es, Fr & De

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Book Description :

Spectroscopy in Inorganic Chemistry, Volume I describes the innovations in various spectroscopic methods that are particularly effective in inorganic chemistry studies. This volume contains nine chapters; each chapter discusses a specific spectroscopic method, their fundamental principles, methods, instrumentation, advantages disadvantages, and application. Chapter 1 covers some of the general principles and experiments that have been used in the recording and interpretation of crystal spectra of molecules that contain transition-metal ions. Chapter 2 illustrates the application of spectroscopic techniques to the photochemistry of small inorganic molecules, non-transition-metal compounds, and transition-metal complexes. The remaining chapters examine several spectroscopic methods, such as matrix isolation, mass, soft X-ray, and Mössbauer spectroscopies, high-resolution NMR, and nuclear quadrupole resonance, with a particular emphasis on their effective application in inorganic chemistry studies. This book will be of great benefit to inorganic chemists, spectroscopists, and inorganic chemistry teachers and students.

Molecular Spectroscopy of Oxide Catalyst Surfaces

Molecular Spectroscopy of Oxide Catalyst Surfaces Book
Author : Anatoli Davydov
Publisher : Wiley-Blackwell
Release : 2003-06-27
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

As in the study of transition metal complexes in solution, molecular spectroscopic methods - principally the infrared, ultraviolet/visible and electron spin resonance spectroscopies - have played key roles in establishing the concepts of coordination chemistry occurring at the surfaces of solids. This book describes the development of the principals of coordination chemistry of oxide surfaces using analyses of data obtained by these methods. The nature, properties, concentration of the surface adsorption centers and their influence on the character of interaction with different molecules are investigated. The book commences with an account of the basic theoretical principles and experimental techniques of the various spectroscopy methods, with special attention devoted to in situ measurements where the oxide or catalyst sample is in contact with the adsorbate or the reactant. A detailed account is presented of the methods for characterizing the oxidation state and degree of coordination of surface cations and oxygen anions by the adsorption of probe molecules. The complexation of many inorganic, organometallic and organic molecules with different oxide systems is critically examined, and a classification of formed surface compounds, based on the interaction with definite type of adsorption centers, is given. Possible mechanisms of numerous catalytic reactions, including the transformation of organic molecules over acidic catalysts via the carboionic mechanism, are discussed using the spectroscopic identifications of reaction intermediates. A comprehensive analysis of the literature on the interpretation of the spectra of surface compounds on oxides is presented. This highly illustrated and extensively referenced volume is intended for specialists working in the fields of surface physical chemistry, surface and materials sciences, and adsorption phenomena and is essential reading for those involved in the heterogeneous catalysis by transition metal-oxides.

Transition Metals in Coordination Environments

Transition Metals in Coordination Environments Book
Author : Ewa Broclawik,Tomasz Borowski,Mariusz Radoń
Publisher : Springer
Release : 2019-03-16
ISBN : 3030117146
Language : En, Es, Fr & De

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Book Description :

This book focuses on the electronic properties of transition metals in coordination environments. These properties are responsible for the unique and intricate activity of transition metal sites in bio- and inorganic catalysis, but also pose challenges for both theoretical and experimental studies. Written by an international group of recognized experts, the book reviews recent advances in computational modeling and discusses their interplay using experiments. It covers a broad range of topics, including advanced computational methods for transition metal systems; spectroscopic, electrochemical and catalytic properties of transition metals in coordination environments; metalloenzymes and biomimetic compounds; and spin-related phenomena. As such, the book offers an invaluable resource for all researchers and postgraduate students interested in both fundamental and application-oriented research in the field of transition metal systems.

Novel Mass Spectroscopy Techniques Implementing UV Action Spectroscopy for the Characterization of DNA Cation Radicals and Transition Metal Complexes

Novel Mass Spectroscopy Techniques Implementing UV Action Spectroscopy for the Characterization of DNA Cation Radicals and Transition Metal Complexes Book
Author : Andy Dang
Publisher : Unknown
Release : 2019
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Mass spectrometry has become a powerful analytical tool for the detection and characterization of chemical compounds for biological and environmental studies. Advancements in mass spectrometry including new ionization sources, ion traps, and ion activation and separation methods have allowed for enhanced structure elucidation of gas-phase ions. With electrospray ionization, multiply-charged ions in solution can now be readily transferred into the gas phase. 3D quadrupole and linear ion traps can now facilitate multi-staged tandem (MSn) mass spectrometry experiments. That is, ions (based on their mass-to-charge ratios) can be isolated and fragmented, desired fragment ions can be subsequently isolated and fragmented, and so on. Ion activation methods including collision-induced dissociation (CID), electron transfer dissociation (ETD), and UV-Vis photodissociation (UVPD) can now offer different fragmentations of precursor ions and can be combined for more robust structural analyses. Here, novel tandem mass spectrometry techniques implementing UVPD action spectroscopy for the characterization of DNA cation radicals and transition metal complexes is presented. To begin, the employment of new automated action spectroscopy methods on two different commercial mass spectrometers is discussed. UVPD action spectroscopy involves exposing isolated ions to high-energy photons and measuring the resulting photo-fragmentation as a function of photon wavelength (i.e. 200-700 nm). The generated action spectrum is representative of the gas-phase ion population's electronic excitations, and can be complemented with theoretical calculations to probe the predominant gas-phase structures. The modifications imposed on a 3D quadrupole and a linear ion trap mass spectrometer, including the optical setups needed to direct an external laser beam into the ion traps, are described in detail. Utilization of the instruments' auxiliary interface features, as well as the specific software (LabView) codes created to orchestrate automated MS[superscript]n-UVPD at specified photon wavelengths, is also reported. To compare the performance of the automated action spectroscopy methods between the two mass spectrometers, the experimental action spectrum of a well-studied compound was generated using both systems. Next, the focus is shifted towards the characterization of DNA molecules using tandem mass spectrometry with UVPD action spectroscopy. Radiative damage of DNA can lead to the formation of nucleobase cation radicals along DNA chains, resulting in nucleobase loss and strand breaks. Here, DNA-based cation radicals of guanine, 9-methylguanine, and guanosine were generated in the gas phase, and their isolated structures and intrinsic properties were probed using UVPD action spectroscopy and excited state computations. The DNA cation radicals generated in the gas phase via MS2-CID of their doubly-charged Cu(II)-complexes were isolated and subjected to MS3-UVPD at incremental wavelengths from 210-700 nm. Experimental action spectra were acquired for the isolated cation radicals and were found to closely match the theoretical spectra generated by time-dependent density functional theory (TD-DFT) calculations, which considered various functionals and basis sets. The results also suggested that the guanine, 9-methylguanine, and guanosine canonical structures were the predominant cation radical conformations in the gas-phase, and were in agreement with past infrared multiphoton photodissociation (IRMPD) action spectroscopy studies. The DNA nucleobase cation radical of thymine was also closely investigated using UVPD action spectroscopy in conjunction with other complementary methods. In this case, thymine cation radicals were generated via MS2-CID of their doubly-charged Cu(II)-complexes and were characterized via UVPD action spectroscopy, hydrogen-deuterium exchange experiments, ion-molecule reactions, and theoretical calculations. The experimental results suggested a mixture consisting chiefly of non-canonical thymine cation radical tautomers (77%), with the canonical isomer as a minor component (23%). Theoretical calculations predicting the low-energy isomers also supported the experimental results. Lastly, the peculiar discovery of gas-phase water splitting involving simple transition metal complexes is addressed. For decades, immense efforts have been directed at achieving catalytic water splitting using sophisticated water oxidation complexes and sunlight to generate carbon-neutral fuels. Here, a novel method utilizing transition metal complexes and near-UV light to split water into hydroxyl radical is explained. (2,2'-bipyridine)Metal-O+ ions (Metal = Cu, Ni, Co) were first produced by near-UV photodissociation of [(2,2'-bipyridine)Metal[superscript]IINO3]+ ions in the gas phase. Upon storage in an ion trap, the (2,2'-bipyridine)Metal-O+ ions spontaneously added water, and the newly-formed [(2,2'-bipyridine)Metal-O + H2O]+ complexes eliminated OH after subsequent near-UVPD (i.e. 260-340 nm) to achieve stoichiometric homolytic cleavage of gaseous water. Ion-molecule reactions, isotope-labeling experiments, and DFT calculations were further conducted to better characterize the reactions.

Electronic Spectra of Transitions Metal Complexes

Electronic Spectra of Transitions Metal Complexes Book
Author : Vinod Jena
Publisher : Lulu.com
Release : 2015-04-12
ISBN : 1329059875
Language : En, Es, Fr & De

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Book Description :

This books will provides a conceptual parts of Electronic spectra of various transition metal complexes, which is useful for various competitive examinations.

Anomalous Magnetic Properties of Certain First Series Transition metal Complexes Studies by Magnetochemical and Spectroscopic Methods

Anomalous Magnetic Properties of Certain First Series Transition metal Complexes Studies by Magnetochemical and Spectroscopic Methods Book
Author : Herbert Wong
Publisher : Unknown
Release : 1973
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Anomalous Magnetic Properties of Certain First Series Transition metal Complexes Studies by Magnetochemical and Spectroscopic Methods book written by Herbert Wong, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Applications of 17O NMR Spectroscopy to Transition Metal Complexes and Capillary GC MS Determination of Nitrogen Aromatic Compounds in Complex Mixtures

Applications of 17O NMR Spectroscopy to Transition Metal Complexes and Capillary GC MS Determination of Nitrogen Aromatic Compounds in Complex Mixtures Book
Author : Robin Lewis Kump
Publisher : Unknown
Release : 1981
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Applications of 17O NMR Spectroscopy to Transition Metal Complexes and Capillary GC MS Determination of Nitrogen Aromatic Compounds in Complex Mixtures book written by Robin Lewis Kump, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Spectroscopic Methods in Organometallic Chemistry

Spectroscopic Methods in Organometallic Chemistry Book
Author : William O. George
Publisher : Unknown
Release : 1970
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Spectroscopic Methods in Organometallic Chemistry book written by William O. George, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Optical Spectra and Chemical Bonding in Transition Metal Complexes

Optical Spectra and Chemical Bonding in Transition Metal Complexes Book
Author : Christian Anthon
Publisher : Springer Science & Business Media
Release : 2004
ISBN : 9783540008545
Language : En, Es, Fr & De

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Book Description :

Download Optical Spectra and Chemical Bonding in Transition Metal Complexes book written by Christian Anthon, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Spectroscopic Methods in Organic Chemistry

Spectroscopic Methods in Organic Chemistry Book
Author : Dudley H. Williams,Ian Fleming
Publisher : McGraw-Hill Companies
Release : 1973
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Intended as a textbook suitable for a first course in the subject, and as a handbook for practising organic chemists.

Fluxional Organometallic and Coordination Compounds

Fluxional Organometallic and Coordination Compounds Book
Author : Marcel Gielen,Rudolph Willem,Bernd Wrackmeyer
Publisher : John Wiley & Sons
Release : 2005-01-28
ISBN : 0470858443
Language : En, Es, Fr & De

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Book Description :

This series offers leading contributions by well-known chemists reviewing the state of the art of this wide research area. Physical organometallic chemistry aims to develop new insights and to promote novel interest and investigations applicable to organometallic chemistry. This volume focuses on several important topics on fluxionality in organometallic and coordination chemistry, reviewed by experts in each of the respective fields. It is intended to provide both authoritative concepts and stimulating ideas in order to tackle dynamics from different angles, aiming at an interdisciplinary approach. The fascinating fluxionality of metal-ligand interactions has been in the centre of interest ever since modern coordination and organometallic chemistry started, and has expanded towards bioinorganic chemistry, catalysis and materials sciences. Provides information on some of the most relevant physical methods for studying dynamic processes Presents numerous examples of dynamic behavior, demonstrating the efficiency of the respective method and stimulating further applications Connects main group, transition metal and solid state chemistry in the question for dynamics

Spin States in Biochemistry and Inorganic Chemistry

Spin States in Biochemistry and Inorganic Chemistry Book
Author : Marcel Swart,Miquel Costas
Publisher : John Wiley & Sons
Release : 2015-09-17
ISBN : 1118898303
Language : En, Es, Fr & De

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Book Description :

It has long been recognized that metal spin states play a central role in the reactivity of important biomolecules, in industrial catalysis and in spin crossover compounds. As the fields of inorganic chemistry and catalysis move towards the use of cheap, non-toxic first row transition metals, it is essential to understand the important role of spin states in influencing molecular structure, bonding and reactivity. Spin States in Biochemistry and Inorganic Chemistry provides a complete picture on the importance of spin states for reactivity in biochemistry and inorganic chemistry, presenting both theoretical and experimental perspectives. The successes and pitfalls of theoretical methods such as DFT, ligand-field theory and coupled cluster theory are discussed, and these methods are applied in studies throughout the book. Important spectroscopic techniques to determine spin states in transition metal complexes and proteins are explained, and the use of NMR for the analysis of spin densities is described. Topics covered include: DFT and ab initio wavefunction approaches to spin states Experimental techniques for determining spin states Molecular discovery in spin crossover Multiple spin state scenarios in organometallic reactivity and gas phase reactions Transition-metal complexes involving redox non-innocent ligands Polynuclear iron sulfur clusters Molecular magnetism NMR analysis of spin densities This book is a valuable reference for researchers working in bioinorganic and inorganic chemistry, computational chemistry, organometallic chemistry, catalysis, spin-crossover materials, materials science, biophysics and pharmaceutical chemistry.

Molecular Electronic Structures of Transition Metal Complexes

Molecular Electronic Structures of Transition Metal Complexes Book
Author : Carl Johan Ballhausen
Publisher : Unknown
Release : 1979
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Molecular Electronic Structures of Transition Metal Complexes book written by Carl Johan Ballhausen, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Electronic Spectra of Transition Metal Complexes

Electronic Spectra of Transition Metal Complexes Book
Author : B.K.Kar
Publisher : New Central Book Agency
Release : 2012
ISBN : 9788173815584
Language : En, Es, Fr & De

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Book Description :

The purpose of this book is to familiarize students with the concepts , methods and applications of crystal field theory as well as ligand field theory to a point where the literature on the subject can followed with much diificulty.

Spectroscopic Analyses

Spectroscopic Analyses Book
Author : Eram Sharmin,Fahmina Zafar
Publisher : BoD – Books on Demand
Release : 2017-12-06
ISBN : 9535136275
Language : En, Es, Fr & De

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Book Description :

The book presents developments and applications of these methods, such as NMR, mass, and others, including their applications in pharmaceutical and biomedical analyses. The book is divided into two sections. The first section covers spectroscopic methods, their applications, and their significance as characterization tools; the second section is dedicated to the applications of spectrophotometric methods in pharmaceutical and biomedical analyses. This book would be useful for students, scholars, and scientists engaged in synthesis, analyses, and applications of materials/polymers.

Electronic and Vibronic Spectra of Transition Metal Complexes II

Electronic and Vibronic Spectra of Transition Metal Complexes II Book
Author : T. Azumi,H.B. Gray,W. Humbs
Publisher : Springer Science & Business Media
Release : 1997-07-16
ISBN : 9783540629221
Language : En, Es, Fr & De

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Book Description :

The unique properties and applications of transition metal compounds have long fascinated both physicists and chemists. This volume presents theoretical and experimental studies for a deeper understanding of the electronic and vibronic properties of these compounds. In particular, an introduction into properties of spin sublevels of dd*, dÂ*, and ÂÂ* states is given, and a modern ligand field theory based on the Angular Overlap Model is presented. In experimental case studies it is shown how to characterize different types of electronic transitions using modern methods of laser spectroscopy. Consequences of spin-orbit coupling, zero-field splittings, spin-lattice relaxations, chromophore-matrix interactions, Herzberg-Teller/Franck-Condon activities, and localization/delocalization properties are treated.

Transition Metal Complexes

Transition Metal Complexes Book
Author : Umendra Kumar
Publisher : LAP Lambert Academic Publishing
Release : 2011-10
ISBN : 9783846529928
Language : En, Es, Fr & De

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Book Description :

This book deals with some modern methods used in the synthesis and characterization of transition metal complexes. It is written primarily to stimulate the interest of students in metallo-organic chemistry and spectroscopy as well. The book is contained much useful spectral data in the form of tables and spectra. It contains a number of electronic, IR and EPR spectra, so the reader who is not familiar with these techniques can see how the spectra actually appear. It begins with a general introduction of applications of transition metal complexes in different fields. In subsequent chapters the detailed study regarding the synthesis and physicochemical characterization of bivalent transition metal ions [Cr(III), Mn(II), Co(II), Ni(II) and Cu(II)] complexes derived from 2-methylcyclohexanone semicarbazone and thiosemicarbazone using modern techniques like elemental analysis, magnetic moments and conductance measurements and spectroscopic (Electronic, IR, EPR ) studies is discussed. The geometry of synthesized complexes is emphasized. The book is intended to be useful to new metallo-organic researchers.

Bulletin of the Chemical Society of Japan

Bulletin of the Chemical Society of Japan Book
Author : Nihon Kagakkai
Publisher : Unknown
Release : 1995
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Bulletin of the Chemical Society of Japan book written by Nihon Kagakkai, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Exploratory Synthesis of New Transition Metal Complexes with Polychalcogenide Ligands Using Conventional Solution Reactions and Hydro solvo thermal Techniques

Exploratory Synthesis of New Transition Metal Complexes with Polychalcogenide Ligands Using Conventional Solution Reactions and Hydro solvo thermal Techniques Book
Author : Songping Huang
Publisher : Unknown
Release : 1993
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Exploratory Synthesis of New Transition Metal Complexes with Polychalcogenide Ligands Using Conventional Solution Reactions and Hydro solvo thermal Techniques book written by Songping Huang, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.