Restricted rotation about the BN bond in aminoboranes: the determination of activation parameters using 13C NMR

13C, 1H and 31P dynamic NMR studies of t

13C, 1H and 31P dynamic NMR studies of tetraalkyldiphosphanes: Barrier to internal rotation about the PP Bond in tetraisopropyldiphosphane

✍ 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