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Studies Concerning The Structure And Bonding Of Organometallic Actinide Complexes
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Book Synopsis Studies Concerning the Structure and Bonding of Organometallic Actinide Complexes by : Gordon Wayne Halstead
Download or read book Studies Concerning the Structure and Bonding of Organometallic Actinide Complexes written by Gordon Wayne Halstead and published by . This book was released on 1977 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Thomas E. Albrecht-Schmitt Publisher :Springer Science & Business Media ISBN 13 :3540778373 Total Pages :197 pages Book Rating :4.5/5 (47 download)
Book Synopsis Organometallic and Coordination Chemistry of the Actinides by : Thomas E. Albrecht-Schmitt
Download or read book Organometallic and Coordination Chemistry of the Actinides written by Thomas E. Albrecht-Schmitt and published by Springer Science & Business Media. This book was released on 2008-06-12 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents critical reviews of the present position and future trends in modern chemical research concerned with chemical structure and bonding. It contains short and concise reports, each written by the world's renowned experts. Still valid and useful after 5 or 10 years, more information as well as the electronic version of the whole content available at springerlink.com.
Book Synopsis Experimental and Theoretical Approaches to Actinide Chemistry by : John K. Gibson
Download or read book Experimental and Theoretical Approaches to Actinide Chemistry written by John K. Gibson and published by John Wiley & Sons. This book was released on 2018-03-19 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of contemporary actinide research that focuses on new advances in experiment and theory, and the interplay between these two realms Experimental and Theoretical Approaches to Actinide Chemistry offers a comprehensive review of the key aspects of actinide research. Written by noted experts in the field, the text includes information on new advances in experiment and theory and reveals the interplay between these two realms. The authors offer a multidisciplinary and multimodal approach to the nature of actinide chemistry, and explore the interplay between multiple experiments and theory, as well as between basic and applied actinide chemistry. The text covers the basic science used in contemporary studies of the actinide systems, from basic synthesis to state-of-the-art spectroscopic and computational techniques. The authors provide contemporary overviews of each topic area presented and describe the current and anticipated experimental approaches for the field, as well as the current and future computational chemistry and materials techniques. In addition, the authors explore the combination of experiment and theory. This important resource: Provides an essential resource the reviews the key aspects of contemporary actinide research Includes information on new advances in experiment and theory, and the interplay between the two Covers the basic science used in contemporary studies of the actinide systems, from basic synthesis to state-of-the-art spectroscopic and computational techniques Focuses on the interplay between multiple experiments and theory, as well as between basic and applied actinide chemistry Written for academics, students, professionals and researchers, this vital text contains a thorough review of the key aspects of actinide research and explores the most recent advances in experiment and theory.
Book Synopsis Influence of Organometallic Actinide Systems on Bonding and Electronic Properties Within the F-Block by : Brian Nicholas Long
Download or read book Influence of Organometallic Actinide Systems on Bonding and Electronic Properties Within the F-Block written by Brian Nicholas Long and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The actinide series is of great importance, possessing applications in clean energy, space travel, medicinal use, and even household smoke detectors. Despite everyday applications, our knowledge of the actinides is severely limited compared to the rest of the periodic table. Low available quantities of these elements, in addition to hazardous radiotoxicity, presents a unique set of challenges when studying them. Nuclear energy presents grand opportunities for clean energy and is a leading source adopted by many countries; however, difficulties in recycling and separating these elements from nuclear waste proves to be a pervasive task. Furthering the limited understanding of bonding and electronic properties characteristic of the actinide series will present new opportunities for recycling and waste separation techniques. Historically, f-electrons were thought to be chemically inert, only participating in electrostatic interactions and displaying heavily localized behavior. Actinides were thought to act like their lanthanide counterparts; however, this is now known to be false. Actinide−carbon bonding showed the first evidence of covalency in the actinide series, differentiating their bonding properties from the lanthanides. Furthermore, recent studies have demonstrated how the greater radial extension of the 5f orbitals beyond the 4f orbitals results in greater reactivity and a lower degree of localization of the 5f electrons. Chapter 1 will provide background information on the actinide series, as well as its historical importance and applications. Information regarding the importance of organometallic actinide chemistry, intervalence charge transfer, and challenges in working with these elements is discussed. Chapters 2 and 3 build a baseline for intervalence charge transfer studies within the actinide series, presenting a series of dinuclear systems with neptunium, plutonium, and various lanthanide analogues. These complexes allow for flexible redox studies and will be applied for the synthesis of mixed-valent systems displaying the delocalization of f-electrons, pushing the boundary on our understanding of these fundamental properties. Chapter 3 transitions from the localized properties of f-electrons to their unique bonding properties by introducing an organometallic synthetic precursor. Metal−carbon bonding is a nearly untouched field in transplutonium elements, which is surprising considering the reported differences in covalency between the actinide−carbon and lanthanide−carbon bonding, as well as the prevalence of americium and curium in nuclear waste. Chapters 5 demonstrates how the addition of azine bridging ligands to these organometallic systems allows for the tuning of covalency in actinide−nitrogen bonding, a common target in improving separations techniques. Chapter 6 presents the first reported structural characterization of a curium−carbon bond, opening doorways to a new field of actinide chemistry: organocurium chemistry. In addition to unexpected bonding differences between curium and its samarium analogue, organometallic curium demonstrates never before seen optical properties, including significantly redshifted emission in a putative Cp'3Cm, as well as the quenched photoluminescence of (Cp'3Cm)2([mu]−4,4'−bpy). This work introduces actinide systems that serve as a baseline for intervalence charge transfer experiments and the delocalization of f-electrons, as well as a series of transplutonium complexes possessing actinide−carbon bonding, possessing bonding and electronic properties never before observed with these elements.
Book Synopsis Lanthanides and Actinides by : Simon Cotton
Download or read book Lanthanides and Actinides written by Simon Cotton and published by . This book was released on 1991 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthetic and Structural Investigations of Lanthanide and Actinide [pi]-organometallic Complexes by : Edgar Chapman Baker
Download or read book Synthetic and Structural Investigations of Lanthanide and Actinide [pi]-organometallic Complexes written by Edgar Chapman Baker and published by . This book was released on 1977 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Orbital Studies of the Bonding in Heavy Element Organometallics by :
Download or read book Molecular Orbital Studies of the Bonding in Heavy Element Organometallics written by and published by . This book was released on 1992 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The upgrade to the DECstation 3100 (and other workstations underway) has enabled the use of more sophisticated electronic structure methods. Research were done in the following fields: tris(cyclopentadienyl) actinide complexes; actinide-containing molecules with metal-metal bonds (U dimer, Th-Ru, Zr-Ru); and applications of fully relativistic DV-X[alpha] method to trivalent actinide chemistry (MCl[sub 3]).
Book Synopsis Electronic Structure and Bonding of Actinide Complexes (Classic Reprint) by : Jules W. Moskowitz
Download or read book Electronic Structure and Bonding of Actinide Complexes (Classic Reprint) written by Jules W. Moskowitz and published by Forgotten Books. This book was released on 2018-02-20 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Electronic Structure and Bonding of Actinide Complexes This report outlines some of the preliminary progress made in the study of the electronic structure of actinide complexes in the Hartree - Fock self - consistent - field approximation. Our goal is to interpret the optical and magnetic properties of these compounds and to estimate the degree to which covalency must be taken into account in order to understand the role of the 5f electrons in both molecular and metallic bonding. The specific compounds to be investigated will include both the hexafluoride and oxide complexes as well as small metallic clusters which reflect the complex geometry of the unit cell found in the metallic phase of these elements. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis Experimental and Theoretical Approaches to Actinide Chemistry by : John K. Gibson
Download or read book Experimental and Theoretical Approaches to Actinide Chemistry written by John K. Gibson and published by John Wiley & Sons. This book was released on 2018-01-08 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of contemporary actinide research that focuses on new advances in experiment and theory, and the interplay between these two realms Experimental and Theoretical Approaches to Actinide Chemistry offers a comprehensive review of the key aspects of actinide research. Written by noted experts in the field, the text includes information on new advances in experiment and theory and reveals the interplay between these two realms. The authors offer a multidisciplinary and multimodal approach to the nature of actinide chemistry, and explore the interplay between multiple experiments and theory, as well as between basic and applied actinide chemistry. The text covers the basic science used in contemporary studies of the actinide systems, from basic synthesis to state-of-the-art spectroscopic and computational techniques. The authors provide contemporary overviews of each topic area presented and describe the current and anticipated experimental approaches for the field, as well as the current and future computational chemistry and materials techniques. In addition, the authors explore the combination of experiment and theory. This important resource: Provides an essential resource the reviews the key aspects of contemporary actinide research Includes information on new advances in experiment and theory, and the interplay between the two Covers the basic science used in contemporary studies of the actinide systems, from basic synthesis to state-of-the-art spectroscopic and computational techniques Focuses on the interplay between multiple experiments and theory, as well as between basic and applied actinide chemistry Written for academics, students, professionals and researchers, this vital text contains a thorough review of the key aspects of actinide research and explores the most recent advances in experiment and theory.
Book Synopsis Lanthanide and Actinide Chemistry by : Simon Cotton
Download or read book Lanthanide and Actinide Chemistry written by Simon Cotton and published by John Wiley & Sons. This book was released on 2013-03-15 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only introduction into the exciting chemistry of Lanthanides and Actinides. The book is based on a number of courses on "f elements" The author has a long experience in teaching this field of chemistry Lanthanides have become very common elements in research and technology applications; this book offers the basic knowledge The book offers insights into a vast range of applications, from lasers to synthesis The Inorganic Chemistry: A Textbook series reflects the pivotal role of modern inorganic and physical chemistry in a whole range of emerging areas, such as materials chemistry, green chemistry and bioinorganic chemistry, as well as providing a solid grounding in established areas such as solid state chemistry, coordination chemistry, main group chemistry and physical inorganic chemistry. Lanthanide and Actinide Chemistry is a one-volume account of the Lanthanides (including scandium and yttrium), the Actinides and the Transactinide elements, intended as an introductory treatment for undergraduate and postgraduate students. The principal features of these elements are set out in detail, enabling clear comparison and contrast with the Transition Elements and Main Group metals. The book covers the extraction of the elements from their ores and their purification, as well as the synthesis of the man-made elements; the properties of the elements and principal binary compounds; detailed accounts of their coordination chemistry and organometallic chemistry, from both preparative and structural viewpoints, with a clear explanation of the factors responsible for the adoption of particular coordination numbers; spectroscopy and magnetism, especially for the lanthanides, with case studies and accounts of applications in areas like magnetic resonance imaging, lasers and luminescence; nuclear separations and problems in waste disposal for the radioactive elements, particularly in the context of plutonium. Latest developments are covered in areas like the synthesis of the latest man-made elements, whilst there is a whole chapter on the application of lanthanide compounds in synthetic organic chemistry. End-of-chapter questions suitable for tutorial discussions are provided, whilst there is a very comprehensive bibliography providing ready access to further reading on all topics.
Book Synopsis Involvement of 5f-orbitals in the Bonding and Reactivity of Organoactinide Compounds by :
Download or read book Involvement of 5f-orbitals in the Bonding and Reactivity of Organoactinide Compounds written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Migratory insertion of diphenyldiazomethane into both metal-carbon bonds of the bis(alkyl) and bis(aryl) complexes (C5Me5)2AnR2 yields the first f-element bis(hydrazonato) complexes (C5Me5)2An[2-(N, N')-R-N-NCPh2]2 [An = Th, R = CH3 (18), PhCH2 (15), Ph (16); An = U, R = CH3 (17), PhCH2 (14)], which have been characterized by a combination of spectroscopy, electrochemistry, and X-ray crystallography. The two hydrazonato ligands adopt an 2-coordination mode leading to 20-electron (for Th) and 22-electron (for U) complexes that have no transition-metal analogues. In fact, reaction of (C5H5)2Zr(CH3)2 or (C5Me5)2Hf(CH3)2 with diphenyldiazomethane is limited to the formation of the corresponding mono(hydrazonato) complex (C5R5)2M[2-(N, N')-CH3-N-NCPh2](CH3) (M = Zr, R = H or M = Hf, R = CH3). The difference in the reactivities of the group 4 metal complexes and the actinides was used as a unique platform for investigating in depth the role of 5f orbitals on the reactivity and bonding in actinide organometallic complexes. The electronic structure of the (C5H5)2M[2-(N, N')-CH3-N-NCH2]2 (M = Zr, Th, U) model complexes was studied using density functional theory (DFT) calculations and compared to experimental structural, electrochemical, and spectroscopic results. Whereas transition-metal bis(cyclopentadienyl) complexes are known to stabilize three ligands in the metallocene girdle to form saturated (C5H5)2ML3 species, in a bis(hydrazonato) system, a fourth ligand is coordinated to the metal center to give (C5H5)2ML4. DFT calculations have shown that 5f orbitals in the actinide complexes play a crucial role in stabilizing this fourth ligand by stabilizing both the s and p electrons of the two 2-coordinated hydrazonato ligands. In contrast, the stabilization of the hydrazonato ligands was found to be significantly less effective for the putative bis(hydrazonato) zirconium(IV) complex, yielding a higher energy structure. However, the difference in the reactivities of the group 4 metal and actinide complexes does not arise on thermodynamic grounds but is primarily of kinetic origin. Unfavorable steric factors have been ruled out as the sole influence to explain these different behaviors, and electronic factors were shown to govern the reactivity. For the actinides, both the C5H5 and more realistic C5Me5 ligands have been taken into account in computing the energy surface. The reaction profile for the C5Me5 system differs from that with the C5H5 ligand by a uniform shift of 5 kcal/mol in the relative energies of the transition state and products. The insertion of a second diazoalkane molecule into the sole metal-carbon bond in the mono(hydrazonato) complexes involves a high energy barrier (20 kcal/mol) for the zirconium(IV) system, whereas the actinides can facilitate the approach of the diazoalkane by coordination (formation of an adduct) and its insertion into the An-C bond with a very low barrier on the potential energy surface.
Book Synopsis Lanthanides And Actinides, The: Synthesis, Reactivity, Properties And Applications by : Stephen T Liddle
Download or read book Lanthanides And Actinides, The: Synthesis, Reactivity, Properties And Applications written by Stephen T Liddle and published by World Scientific. This book was released on 2021-12-30 with total page 727 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lanthanides and Actinides: Synthesis, Reactivity, Properties and Applications constitutes an introduction to and comprehensive coverage of f-block chemistry encompassing the following areas: periodicity, natural occurrence and extraction, separations, electronic structure, coordination chemistry, organometallic chemistry, small molecule activation, catalysis, organic synthesis applications, magnetism, spectroscopy, computation, materials, photonics, solar cell technology, biological imaging, and technological applications. Under these subject areas the book provides a broad but deep coverage, providing basic overviews as well as detailed chapters on specific areas.This book, targeted at academics, postgraduates and advanced undergraduates, will serve as an ideal introductory text and key reference work to the Lanthanides and Actinides.
Book Synopsis Molecular Orbital Studies of the Bonding in Heavy Element Organometallics. Progress Report by :
Download or read book Molecular Orbital Studies of the Bonding in Heavy Element Organometallics. Progress Report written by and published by . This book was released on 1992 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The upgrade to the DECstation 3100 (and other workstations underway) has enabled the use of more sophisticated electronic structure methods. Research were done in the following fields: tris(cyclopentadienyl) actinide complexes; actinide-containing molecules with metal-metal bonds (U dimer, Th-Ru, Zr-Ru); and applications of fully relativistic DV-X[alpha] method to trivalent actinide chemistry (MCl3).
Book Synopsis Probing the Chemistry, Electronic Structure and Redox Energetics in Pentavalent Organometallic Actinide Complexes by :
Download or read book Probing the Chemistry, Electronic Structure and Redox Energetics in Pentavalent Organometallic Actinide Complexes written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Complexes of the early actinides (Th-Pu) have gained considerable prominence in organometallic chemistry as they have been shown to undergo chemistries not observed with their transition- or lanthanide metal counterparts. Further, while bonding in f-element complexes has historically been considered to be ionic, the issue of covalence remains a subject of debate in the area of actinide science, and studies aimed at elucidating key bonding interactions with 5f-orbitals continue to garner attention. Towards this end, our interests have focused on the role that metal oxidation state plays in the structure, reactivity and spectral properties of organouranium complexes. We report our progress in the synthesis of substituted U{sup V}-imido complexes using various routes: (1) Direct oxidation of U{sup IV}-imido complexes with copper(I) salts; (2) Salt metathesis with U{sup V}-imido halides; (3) Protonolysis and insertion of an U{sup V}-imido alkyl or aryl complex with H-N{double_bond}CPh2 or N{triple_bond}C-Ph, respectively, to form a U{sup V}-imido ketimide complex. Further, we report and compare the crystallographic, electrochemical, spectroscopic and magnetic characterization of the pentavalent uranium (C5Me5)2U({double_bond}N-Ar)(Y) series (Y = OTf, SPh, C{triple_bond}C-Ph, NPh2, OPh, N{double_bond}CPh2) to further interrogate the molecular, electronic, and magnetic structures of this new class of uranium complexes.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Actinides in Perspective by : Norman M. Edelstein
Download or read book Actinides in Perspective written by Norman M. Edelstein and published by Elsevier. This book was released on 2013-09-11 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt: Actinides in Perspective presents in proceedings of the Actinides-1981 Conference held in Pacific Grove, California, USA on September 10-15, 1981. The book contains papers on the different aspect of the physics and chemistry of the actinides. The text includes papers on the history of the discovery of the transplutonium elements; the photoemission techniques; and the neutron scattering studies of the actinides. The new elements in the transfermium region; the isotope identification in the transfermium region by ?-? correlation after in-flight-separation; and the fission properties of the actinides are also considered. The book further tackles papers on the status of superheavy element research; the single crystal preparation of actinides and actinide compounds; and the preparation of transplutonium metals and compounds, protactinium metal and compounds, and actinide metals. The text also includes papers on the complex oxide systems of the actinides; thermodynamic properties of the actinides; and the chemical and physicochemical properties of actinide organometallic compounds.
Author :University Microfilms International Publisher :Ann Arbor, Mich. : University Microfilms International ISBN 13 : Total Pages :712 pages Book Rating :4.F/5 ( download)
Book Synopsis Comprehensive Dissertation Index by : University Microfilms International
Download or read book Comprehensive Dissertation Index written by University Microfilms International and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1984 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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