𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Selection of methyl resonances in proton-detected heteronuclear shift correlation, the hqqc experiment

✍ Scribed by H Kessler; P Schmieder; M Köck; M Reggelin

Publisher
Elsevier Science
Year
1991
Weight
280 KB
Volume
91
Category
Article
ISSN
0022-2364

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

NMR of the methylene group: Artifacts in
NMR of the methylene group: Artifacts in the proton–proton decoupled heteronuclear two-dimensional chemical shift correlation experiment
✍ Alex D. Bain; Donald W. Hughes; Howard N. Hunter 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 369 KB

When the protomproton decoupled heteronuclear two-dimensional chemical shift correlation experiment is applied to a molecule containing methylene groups, the spectra show not only the expected signals at the two proton chemical shifts, but also a strong artifact. This artifact appears at the average

Assignment of the NMR spectra of benzo[b
Assignment of the NMR spectra of benzo[b]triphenyleno[1,2-d]thiophene through the application of zero quantum proton—proton correlation combined with proton-detected long-range multiple quantum heteronuclear chemical shift correlation
✍ Andrew S. Zektzer; L. D. Sims; Raymond N. Castle; Gary E. Martin 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 972 KB

Assignment of the congested proton and carbon NMR spectra of heterocyclic benzo [b]triphenyleno[ 1,f-djthiophene was accomplished through the concerted application of several two-dimensional NMR experiments. The inherent insensitivity of homonuclear zero quantum coherence to magnetic field inhomogen

The proton resonance spectra of heterocy
The proton resonance spectra of heterocycles—VI: The correlation of substituent effects on chemical shifts in bicyclic compounds
✍ A. R. Katritzky; Y. Takeuchi; B. Ternai; G. J. T. Tiddy 📂 Article 📅 1970 🏛 John Wiley and Sons 🌐 English ⚖ 477 KB 👁 1 views

## Abstract The proton chemical shifts are reported for monosubstituted naphthalenes, quinolines and quinoxalines. Together with literature data, these chemical shifts are compared with the parent compounds and substituent effects evaluated statistically. The effect of substituents parallels that i