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Dynamic NMR Spectroscopy (Paperback, Softcover reprint of the original 1st ed. 1978): Alois Steigel, Hans W Spiess Dynamic NMR Spectroscopy (Paperback, Softcover reprint of the original 1st ed. 1978)
Alois Steigel, Hans W Spiess
R4,002 Discovery Miles 40 020 Ships in 18 - 22 working days

Since the first successful NMR experiments in 1946 it was well appreciated that dynamic processes play an important role in the NMR spectroscopy of bulk matter [1]. Early theories on the dependence of the relaxation parameters Tl and T2 on the motions of nuclear spins were successful in explaining the dipolar broadening of the NMR signal in solids and the motional narrowing in liquids [2]. With the discovery of chemical shifts and spin-spin couplings another type of dynamical process affect ing the NMR line shape became apparent, the chemical exchange. As a consequence, dynamical NMR studies split into two groups differing not only in the dynamical topics but also in the method of investigation: physical studies of the motion of spins in liquids and solids by measurement of the relaxation times of single resonances and, on the other hand, chemical studies based on band shape analysis of NMR spectra recorded under steady state conditions. The two fields of research lost some of their basic differences with the development of the Fourier transform NMR method [3], which allows the measurement of relaxation times of different resonances at the same time, i. e. the study of differential motional behavior of different parts of mole cules, thus providing a new tool in conformational analyses. For example, informa tion can be obtained by this method on the relative importance of overall motions and internal motions [4].

Spektroskopie amorpher und kristalliner Festkoerper (German, Paperback): Dietrich Haarer, Hans W Spiess Spektroskopie amorpher und kristalliner Festkoerper (German, Paperback)
Dietrich Haarer, Hans W Spiess
R1,586 Discovery Miles 15 860 Ships in 18 - 22 working days

Mit Spektroskopie amorpher und kristalliner Festkorper steht ein Lehrbuch zur Verfugung, das die verschiedenen Spektroskopiearten in breiter Darstellung gleichberechtigt behandelt, von den Grundlagen zu den neuesten Entwicklungen hinfuhrt und daruber hinaus das weite Anwendungspotential durch geeignete Beispiele verdeutlicht.
Beginnend mit einem Uberblick uber die Spektroskopie mit elektromagnetischer Strahlung variabler Wellenlange stellt der zweite Teil die Spektroskopie in den grosseren Zusammenhang von Methoden zur Bestimmung von Struktur und Dynamik von Festkorpern. Der dritte Teil widmet sich dem wichtigsten Gebiet der Transportvorgange in Festkorpern. Wegen der Fulle und der Komplexitat der behandelten Methoden sind die einzelnen Kapitel von Experten der jeweiligen Teilgebiete geschrieben. Die Unterstutzung fortgeschrittener Vorlesungen, eine Vereinfachung des Zugangs zur Originalliteratur und eine Erleichterung bei der Auswahl der leistungsfahigsten Methode fur konkrete Probleme sind die klaren Vorteile, die das Buch dem Benutzer bietet."

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