𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Dynamic NMR study of rotational isomerism in the carbanion of p-trifluoromethanesulfonylbenzyltriflone in aprotic solvents

✍ Scribed by Marina Gromova; Claude G. Béguin; Régis Goumont; Nicolas Faucher; Marc Tordeux; François Terrier


Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
114 KB
Volume
38
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Dynamic NMR study of hindered rotation a
✍ Mariana Ciureanu; Victor E. Sahini; Felicia Cornea; Cornelia Cercasov; Mihai Con 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 356 KB 👁 1 views

## Abstract The barriers to internal rotation about the CN bond in several thiopiperidides have been determined by the NMR technique. It was found that the barrier height (Δ__G__^‡^) increases in the series cinnamoylthiopiperididem‐and __p__‐substituted cinnamoylthiopiperidides the barriers were s

Dynamic NMR study of the factors governi
✍ Daniel A. Fletcher; Brian G. Gowenlock; Keith G. Orrell; Vladimir Šik 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 690 KB

## Abstract The energy barriers associated with NO rotation in a series of __p__‐nitrosoanilines were measured by the total bandshape NMR method. Energies [Δ__G__^‡^ (298.15 K)] are in the range 38–57 kJ mol^−1^, the magnitudes being lowered appreciably by the presence of methyl substituents flank

Restricted rotation of the phenyl group
✍ Nikolay G. Vassilev; Valentin S. Dimitrov 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 515 KB

## Abstract Free energies of activation, Δ__G__, for the rotation of the phenyl group in the range of 46.06–63.25 kJ mol^−1^ were observed in some model β‐hydroxyphosphonates. These barriers were found to depend on the type of substituents at the phosphorus atom and on the substituents at the β‐pos

13C, 1H and 31P dynamic NMR studies of t
✍ J. P. Albrand; A. Cogne; C. Taieb 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 English ⚖ 572 KB

## Abstract The ^1^H, ^31^P and ^13^C NMR spectra of tetramethyldiphosphane (1), tetraethyldiphosphane (2) and tetraisopropyldiphosphane (3) have been studied in the temperature range 30 to −150°C and at magnetic induction up to 5.87 T. In the range −100 to −135 °C, the ^1^H and ^13^C spectra of 3

1H and 31P NMR studies of rotational iso
✍ Zdzisław Siatecki; Henryk Kozłowski 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 245 KB 👁 1 views

## Abstract By the use of the ^1^H^1^H and ^1^H^31^P coupling constants in two analogues of aspartic acid i.e. 3‐amino‐3‐phosphonatopropionic and 3‐amino‐3‐(methylphosphinato) propionic acids, it was shown that the six parameter formulation for the evaluation of mole fractions of three staggered