Improving the performance of J-modulated ADEQUATE experiments through homonuclear decoupling and non-uniform sampling

Josep Saurí; Teodor Parella; R. Thomas Williamson; Gary E. Martin

doi:10.1002/mrc.4322

Improving the performance of J-modulated ADEQUATE experiments through homonuclear decoupling and non-uniform sampling

Josep Saurí, Teodor Parella, R. Thomas Williamson, Gary E. Martin^*

^*Corresponding author for this work

Department of Chemistry

Merck and Co. Inc.

Research output: Contribution to journal › Article › Research › peer-review

16 Citations (Scopus)

Abstract

Homonuclear ¹³C–¹³C couplings at natural abundance can be measured using the J-modulated Adequate DoublE QUAntumTransfer Experiment (ADEQUATE) experiment. To somewhat ameliorate F₁ digitization requirements, a scaling factor was incorporated into the original pulse sequence. Non-uniform sampling provides an obvious avenue to further facilitate the acquisition of ¹J_CC and ⁿJ_CC homonuclear coupling constant data. We introduce homonuclear decoupling (HD) analogous to that described for the 1,1-HD-ADEQUATE and 1,n-HD-ADEQUATE experiments and evaluate the combination of non-uniform sampling and HD on the acquisition of both ¹J_CC and ⁿJ_CC homonuclear ¹³C–¹³C coupling constants using ibuprofen as a model compound.

Original language	English
Pages (from-to)	191-197
Number of pages	7
Journal	Magnetic Resonance in Chemistry
Volume	55
Issue number	3
DOIs	https://doi.org/10.1002/mrc.4322
Publication status	Published - 1 Mar 2017

Keywords

C–C homonuclear coupling constants
ADEQUATE
broadband homonuclear decoupling
J-modulated ADEQUATE
non-uniform sampling (NUS)

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abstract = "Homonuclear 13C–13C couplings at natural abundance can be measured using the J-modulated Adequate DoublE QUAntumTransfer Experiment (ADEQUATE) experiment. To somewhat ameliorate F1 digitization requirements, a scaling factor was incorporated into the original pulse sequence. Non-uniform sampling provides an obvious avenue to further facilitate the acquisition of 1JCC and nJCC homonuclear coupling constant data. We introduce homonuclear decoupling (HD) analogous to that described for the 1,1-HD-ADEQUATE and 1,n-HD-ADEQUATE experiments and evaluate the combination of non-uniform sampling and HD on the acquisition of both 1JCC and nJCC homonuclear 13C–13C coupling constants using ibuprofen as a model compound.",

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Improving the performance of J-modulated ADEQUATE experiments through homonuclear decoupling and non-uniform sampling

Abstract

Keywords

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