Long-range heteronuclear coupling constants, n J XH , have been recognized as an important source of information in the structural elucidation of molecules (1). Accordingly, a large number of methods for their measurement have been proposed to date . Often these methods rely on the characteristic sp
Measurement of Long-Range 1H-13C Coupling Constants from Quantitative 2D Heteronuclear Multiple-Quantum Correlation Spectra
β Scribed by G. Zhu; A. Bax
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 324 KB
- Volume
- 104
- Category
- Article
- ISSN
- 1064-1858
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
A simple pulse sequence in inverse-detection mode is proposed for the detection of heteronuclear long-range couplings. In the resulting 2D heteronuclear multiple-bond correlation (HMBC) spectra, pure-absorptive peak patterns are obtained along both frequency dimensions. Since the heteronuclear coupl
## Abstract Known selective 2D Jβresolved methods for the determination of longβrange protonβcarbon coupling constants, ^n^__J__(C, H), have been modified and improved by introducing an INEPT or refocused INEPT sequence as a preparation period in the BaxβFreeman selective spinβflip method, or using