A study of reactions between cupric or ferric sulphate solutions and a stearic acid monolayer

Solvent-induced isotope effects in NMR s

Solvent-induced isotope effects in NMR spectroscopy. A study of hydrogen bonding between the carbonyl group in chalcone and trifluoracetic acid (TFA-d or TFA) in chloroform solution

✍ Lech Kozerski 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 397 KB

Splittings, 6,, were observed for each carbon atom, C,, of chalcone in spectra obtained from coaxial 5 and 10 mm NMR sample tubes containing solutions equimolar in the concentration of the ketone and of TFA or TFA-d as hydrogen-bond donors, respectively. It was found that a linear expression, S,A,+x