J-compensated proton-detected heteronuclear shift-correlation experiments

A. M. Torres; T. T. Nakashima; R. E.D. McClung

doi:10.1006/jmra.1993.1094

J-compensated proton-detected heteronuclear shift-correlation experiments

A. M. Torres, T. T. Nakashima, R. E.D. McClung

University of Alberta

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

14 Citations (Scopus)

Abstract

A new proton-detected heteronuclear shift-correlation experiment, J-HSMQC, is proposed for sensitivity enhancement for samples containing a wide range of ¹J_CH values. This method, which incorporates only two additional τ periods and has the same number of RF pulses as the HSQC experiment, is found to give significant enhancements for CH fragments with ¹J_CH values which deviate considerably from the coupling constant for which τ is optimal. The J-HSMQC maps also contain reasonably intense two-bond correlations for some CH fragments.

Original language	English
Pages (from-to)	219-227
Number of pages	9
Journal	Journal of Magnetic Resonance, Series A
Volume	102
Issue number	2
DOIs	https://doi.org/10.1006/jmra.1993.1094
Publication status	Published - 1993
Externally published	Yes

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abstract = "A new proton-detected heteronuclear shift-correlation experiment, J-HSMQC, is proposed for sensitivity enhancement for samples containing a wide range of 1JCH values. This method, which incorporates only two additional τ periods and has the same number of RF pulses as the HSQC experiment, is found to give significant enhancements for CH fragments with 1JCH values which deviate considerably from the coupling constant for which τ is optimal. The J-HSMQC maps also contain reasonably intense two-bond correlations for some CH fragments.",

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AB - A new proton-detected heteronuclear shift-correlation experiment, J-HSMQC, is proposed for sensitivity enhancement for samples containing a wide range of 1JCH values. This method, which incorporates only two additional τ periods and has the same number of RF pulses as the HSQC experiment, is found to give significant enhancements for CH fragments with 1JCH values which deviate considerably from the coupling constant for which τ is optimal. The J-HSMQC maps also contain reasonably intense two-bond correlations for some CH fragments.

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ER -

J-compensated proton-detected heteronuclear shift-correlation experiments

Abstract

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