Nuclear Magnetic Resonance Studies of Paramagnetic Transition Metal Ion Complexes PDF Download
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Author: William Daniel Perry
Publisher:
ISBN:
Category : Cobalt
Languages : en
Pages : 236
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Book Description
Author: William Daniel Perry
Publisher:
ISBN:
Category : Cobalt
Languages : en
Pages : 236
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Book Description
Author: Kee-Lam Chua
Publisher:
ISBN:
Category :
Languages : en
Pages : 145
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Book Description
Author: G.N. la Mar
Publisher: Springer Science & Business Media
ISBN: 9401585733
Category : Science
Languages : en
Pages : 403
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Book Description
Since A. Kowalsky's first report of the spectrum of cytochrome c in 1965, interest in the detection, assignment and interpretation of paramagnetic molecules has surged, especially in the last decade. Two classes of systems have played a key role in the development of the field: heme proteins and iron-sulfur proteins. These two systems are unique in many respects, one of which is that they contain well-defined chromophores, each of which can be studied in detail outside the protein matrix. They are the most successfully studied macromolecules, and the first eight and last six of the seventeen contributions to this book deal with heme and/or iron-sulfur proteins. The middle three chapters survey the progress on, and significant promise of, more difficult systems which do not possess a chromophore, but which have nevertheless yielded remarkable insights into their structure.
Author: P. S. Pregosin
Publisher: Elsevier Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 372
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Book Description
Transition metal NMR spectroscopy has progressed enormously in recent years. New methods, and specifically solid-state methods and new pulse sequences, have allowed access to data from nuclei with relatively low receptivities with the result that chemists have begun to consider problems previously inaccessible. Moreover, theory, and computational science in particular, now permits the calculation of not just 13 C, 15 N and other light nuclei chemical shifts, but also heavy main-group elements and transition metals. This, combined with increasing access to high field pulsed spectrometers has produced a wealth of new data on NMR of transition metals. understanding and using the nuclear magnetic resonance spectra of the metals of Groups 3-12. The reader is provided with a view on how these nuclei are currently being approached, and what information can be obtained. The authors have liberally reproduced spectra as well as correlations relating metal-NMR data to different physical characteristics of their molecules.
Author: M. N. S. Hill
Publisher:
ISBN:
Category :
Languages : en
Pages : 382
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Author: Ivano Bertini
Publisher: Elsevier
ISBN: 0080541488
Category : Science
Languages : en
Pages : 384
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Book Description
NMR is a growing technique which represents a generalized, spread, common tool for spectroscopy and for structural and dynamic investigation. Part of the field of competence of NMR is represented by molecules with unpaired electrons, which are called paramagnetic. The presence of unpaired electrons is at the same time a drawback (negative effect) and a precious source of information about structure and dynamics. New phenomena and effects are described which are due to the high magnetic fields and advances in the methodology. Solution NMR of Paramagnetic Molecules is unique in dealing with these matters. The scope is that of presenting a complete description, which is both rigorous and pictorial, of theory and experiments of NMR of paramagnetic molecules in solution. Pertinent examples are described. From the time dependent behaviour of electrons in the various metal ions including polimetallic systems to the hyperfine-based information, and from NMR experiments to constraints for solution structure determination. The book's major theme is how to perform high resolution NMR experiments and how to obtain structural and dynamic information on paramagnetic metal ion containing systems.
Author: Michael Andrew Freeman
Publisher:
ISBN:
Category : Nuclear magnetic resonance
Languages : en
Pages : 388
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Book Description
Author: Vijay Kumar Kapur
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Helmut Sigel
Publisher: CRC Press
ISBN: 9780824775926
Category : Science
Languages : en
Pages : 330
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Book Description
Metal Ions in Biological Systems is devoted to increasing our understanding of the relationship between the chemistry of metals and life processes. The volumes reflect the interdisciplinary nature of bioinorganic chemistry and coordinate the efforts of researchers in the fields of biochemistry, inorganic chemistry, coordination chemistry, environmental chemistry, biophysics, pharmacy, and medicine. Volumes deal with such topics as the formation, stability, structure, and reactivity of biological compounds of low and high molecular weight containing metal ions; the metabolism and transport of metal ions and their complexes; and new models of complicated natural structures and processes. Volume 21 describes the underlying theories of nuclear magnetic resonance (NMR), promoting a wider use of NMR in studies of paramagnetic species. In six concise chapters by leading international authorities, Applications of Nuclear Magnetic Resonance to Paramagnetic Species outlines the most recent developments regarding the use of nuclear relaxation as a source for structural information ... examines studies of magnetically coupled metalloproteins and metal-porphyrin induced dipolar shifts for conformational analysis ... and evaluates the potential of paramagnetic ions as agents for enhancing NMR image contrast. With over 500 references that facilitate further research, Applications of Nuclear Magnetic Resonance to Paramagnetic Species is an essential resource for scientists and students in such disciplines as biophysics; bioinorganic, inorganic, and coordination chemistry; biochemistry; molecular biology; and enzymology. Book jacket.
Author: Robert Sievers
Publisher: Elsevier
ISBN: 0323150993
Category : Science
Languages : en
Pages : 425
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Book Description
Nuclear Magnetic Shift Reagents presents the proceedings of the Symposium on the Chemistry of Nuclear Magnetic Resonance Shift Reagents, held in Dallas, Texas, on April 9–11, 1973. This book discusses the fundamental aspects of shift reagent chemistry as well as the physical and chemical properties of shift reagents. Comprised of 16 chapters, this compilation of papers starts with an overview of the deuterium isotope effect in lanthanide shifts. This text then examines the variations in coordination geometries for chemically equivalent molecules of shift reagent-substrate complexes in the solid state, which illustrate the ease with which changes occur in the coordination sphere of lanthanide complexes. Other chapters discuss the dipolar nature of proton resonance shifts in lanthanide shift reagent systems. This book considers as well the feasibility of using chiral shift reagents. The final chapter deals with the effects of chemical equilibrium and adduct stoichiometry in studies of shift reagent. Chemists, biochemists, and molecular physicists will find this book useful.
