2D NMR Nutation Analysis of Non-Thermal Polarization of Coupled Multi-Spin Systems

Verfasser / Beitragende:
[K. L. Ivanov, K. Miesel, Hans-Martin Vieth, A. V. Yurkovskaya, R. Z. Sagdeev]
Ort, Verlag, Jahr:
2003
Enthalten in:
Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics, 217/12/2003(2003-12-01), 1641-1659
Format:
Artikel (online)
ID: 378862812
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024 7 0 |a 10.1524/zpch.217.12.1641.20479  |2 doi 
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245 0 0 |a 2D NMR Nutation Analysis of Non-Thermal Polarization of Coupled Multi-Spin Systems  |h [Elektronische Daten]  |c [K. L. Ivanov, K. Miesel, Hans-Martin Vieth, A. V. Yurkovskaya, R. Z. Sagdeev] 
520 3 |a A new, convenient method of analyzing the spin polarization of a non-equilibrium system of N coupled nuclei is described and applied to photo-reactions exhibiting chemically induced dynamic nuclear polarization (CIDNP). It is based on the Fourier analysis of the variation of NMR line intensities as a function of the radio frequency excitation pulse length. A relationship between the spectral components at various harmonic order and the alignment in the spin multiplet is established. In application to the Norrish type I photolysis of cyclodecanone we demonstrate that at low magnetic field the rate determining step in the reaction kinetics depends on the mutual orientation of at least four pairs of non-equivalent spins. 
540 |a © 2003 Oldenbourg Wissenschaftsverlag GmbH 
690 7 |a Thermodynamics & statistical physics  |2 nationallicence 
690 7 |a Laboratory techniques, experiments  |2 nationallicence 
690 7 |a Physical chemistry  |2 nationallicence 
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700 1 |a Miesel  |D K.  |4 aut 
700 1 |a Vieth  |D Hans-Martin  |4 aut 
700 1 |a Yurkovskaya  |D A. V.  |4 aut 
700 1 |a Sagdeev  |D R. Z.  |4 aut 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yurkovskaya  |D A. V.  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Sagdeev  |D R. Z.  |4 aut 
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