A modified long-range heteronuclear chemical shift correlation pulse sequence which eliminates modulations of response intensity due to one-bond proton-carbon I'J(CH)] spin couplings is described. The 'decoupling' of one-bond modulation has been accomplished through the use of a bilinear rotational
“Decoupling” modulations due to one-bond heteronuclear spin couplings in long-range heteronuclear chemical-shift correlation spectra
✍ Scribed by Andrew S Zektzer; Boban K John; Raymond N Castle; Gary E Martin
- Publisher
- Elsevier Science
- Year
- 1987
- Weight
- 350 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0022-2364
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
BIRD pulses have been shown to provide an effective means of decoupling ow-bond modulation of long-range response intensity. It is not possible to optimize the BIRD pulse effectively wben tbere is a range of one-bond coupling constants. To examine the effects of misoptimization of the fixed delays (
Several recent papers have dealt with the modulation of protonated carbon response intensities in long-range heteronuclear 2D NMR chemical shift correlation spectra. Expressions describing the one-tend modulation of the response intensity of the C-3 methylene resonance of 6,7dimethoxy-3,4dihydroisoq
Modified long-range heteronuclear chemical shift correlation pulse sequences which incorporate both BIRD pulses midway through the A, magnetization transfer delay and low-pass J filters are described. The BIRD pulse provides the means of decoupling one-bond modulations of response intensity when mag