Pronounced conformational preferences in 1,4-disubstituted but-2-ynes

Strong coupling effects in 2DJ, ? Spectr

Strong coupling effects in 2DJ, ? Spectra: An application for the determination of the conformational isomers of some 1,4 disubstituted dioxanes

✍ Traficante, Daniel D. ;Meadows, Michael D. 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 484 KB 👁 2 views

When strong proton ᎐ proton coupling is present, a projection of the tilted ( ) two-dimensional J, ␦ J-resolved spectrum frequently produces one or more extra lines, i.e., there are more lines in the projection than there are protons in the molecule. Contrary to popular belief, these lines are not '