1998
DOI: 10.1002/(sici)1521-3757(19980316)110:6<817::aid-ange817>3.3.co;2-s
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SIAM, ein neues NMR-Experiment für die Bestimmung homonuclearer Kopplungskonstanten

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“…A simpler spectrum with enhanced coupling-resolution can be obtained through J-evolution under isotropic mixing conditions during t 1 [13][14][15][16] by applying a selective TOCSY multiple-pulse sequence. [16][17][18] If the state I 1x ÀI 2x is prepared in a two-spin system, under isotropic mixing conditions [19] the magnetization of the spin I 1 evolves according to hI 1x i iso = cos 2pJ t 1 . [16] This is twice the frequency of the oscillation during evolution in the weakcoupling limit of the same spin system (hI 1x i weak = cospJ t 1 ).…”
mentioning
confidence: 99%
“…A simpler spectrum with enhanced coupling-resolution can be obtained through J-evolution under isotropic mixing conditions during t 1 [13][14][15][16] by applying a selective TOCSY multiple-pulse sequence. [16][17][18] If the state I 1x ÀI 2x is prepared in a two-spin system, under isotropic mixing conditions [19] the magnetization of the spin I 1 evolves according to hI 1x i iso = cos 2pJ t 1 . [16] This is twice the frequency of the oscillation during evolution in the weakcoupling limit of the same spin system (hI 1x i weak = cospJ t 1 ).…”
mentioning
confidence: 99%
“…Ein einfacheres Spektrum mit verbesserter Auflösung erhält man durch isotrope J-Evolution während t 1 [13][14][15][16] unter Anwendung einer selektiven TOCSY-Multipulssequenz (TOCSY: total correlation spectroscopy). [16][17][18] Präpariert man in einem Zweispinsytem den Zustand I 1x ÀI 2x , dann entwickelt sich die Magnetisierung des ersten Spins unter isotropen Mischbedingungen [19] mit hI 1x i iso = cos 2pJ t 1 . [16] Dies entspricht der doppelten Frequenz gegenüber der Oszillation bei freier Evolution des gleichen Spinsystems unter schwacher Kopplung (hI 1x i schwach = cospJ t 1 ).…”
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