A general building block to introduce carbon multiplicity information into multi-dimensional HSQC-type experiments

Parella, Teodor; Belloc, Jordi; Sánchez‐Ferrando, Francisco; Virgili, Albert

doi:10.1002/(sici)1097-458x(199810)36:10<715::aid-omr355>3.0.co;2-t

Cited by 24 publications

(24 citation statements)

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“…Als Erweiterung der oben gezeigten Pulssequenz kann man durch Einfügen einer Spin‐Echo‐Sequenz eine phasenkodierte Multiplizitäts‐Information erzeugen, so dass CH‐ und CH 3 ‐Kreuzsignale z. B. in schwarz (d. h. positive Intensität), diejenigen von CH 2 aber in rot (d. h. negative Intensität) dargestellt werden . Obwohl nicht unbedingt notwendig, ist diese Modifikation oft sehr hilfreich bei komplexeren Molekülen.…”

Section: Neuere Entwicklungenunclassified

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COSY‐ und HSQC‐NMR‐Spektroskopie

Findeisen¹,

Siehl²,

Berger

2017

Chemie in nserer Zeit

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Section: Neuere Entwicklungenunclassified

“…Als erweiterung der oben gezeigten Pulssequenz kann man durch einfügen einer SpinechoSequenz eine phasen [19]. Obwohl nicht unbedingt notwendig, ist diese modifikation oft sehr hilfreich bei komplexeren molekülen.…”

Section: Neuere Entwicklungenunclassified

COSY‐ und HSQC‐NMR‐Spektroskopie

Findeisen¹,

Siehl²,

Berger

2017

Chemie in nserer Zeit

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“…Besides, 13 C Multiplicity Editing (ME) information with signals originated from CH/CH 3 or CH 2 having opposite phase, has been implemented in a long list of NMR experiments, being nowadays the popular 1 H/ 13 C ME‐HSQC a very common routine technique . In this work, we propose extensions of the regular TOCSY and HD‐TOCSY experiments by introducing ME, referred to as ME‐TOCSY.…”

Section: Introductionmentioning

confidence: 99%

Multiplicity‐edited ¹H‐¹H TOCSY experiment

Nolis

Parella

2018

Magnetic Reson in Chemistry

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A H- H total correlation spectroscopy (TOCSY) experiment incorporating C multiplicity information is proposed. In addition, broadband H homodecoupling in the indirect dimension can be implemented using a perfect BIRD module that affords exclusive H chemical shift evolution with full decoupling of all heteronuclear and homonuclear (including J ) coupling constants. As a complement to the normal TOCSY and the recent PSYCHE-TOCSY experiments, this novel multiplicity-edited TOCSY experiment distinguishes between CH/CH (phased up) and CH (phased down) cross-peaks, which facilitates resonance analysis and assignment.

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“…[10][11] [12] Improved versions have been proposed that utilize synchronized 13 C adiabatic inversion sweep pulses to compensate for variation in the 1 J(CH) values between 120-180Hz. [13] [14][15] The widely used multiplicity-edited HSQC (ME-HSQC) experiment, where CH/CH 3 cross peaks are clearly distinguished from CH 2 correlations by their opposite relative phase [10][11][12][13][14][15], is probably the best example demonstrating how this information can be retrieved from a single NMR spectrum without introducing substantial penalties in sensitivity, spectral quality, or pulse sequence complexity. Carbon-multiplicity editing showing the characteristic up/down representation has also been successfully extended to HSQC-TOCSY [12] and ADEQUATE [16] experiments.…”

Section: Introductionmentioning

confidence: 99%