About the internal mobility of simple and resonance stabilized phosphorus ylides
Triphenylphosphoniomethanide and alkyl-substituted analogs are torsionally unrestricted even at -100 Deg whereas the temp. dependence of the rotation around the Ca, Ph axis in triphenylphosphoniophenylmethanide reveals this ylide to be resonance stabilized to the extent of 8.5 kcal/mol. [on SciFinder (R)]
Keywords: Resonance (of phosphorus ylides); Ylides Role: PRP (Properties) (phosphorus ; torsional rotation and resonance of ; carbon-13 NMR study of); Potential barrier (torsional ; of phosphorus ylides) ; phosphorus ylide resonance; torsional potential barrier phosphorus ylide
Organometallic and Organometalloidal Compounds
Inst. Chim. Org.,Univ. Lausanne,Lausanne,Switz.
written in English.
3487-44-3D Role: PRP (Properties) (torsional rotation and resonance of); 30417-68-6; 131139-22-5; 131139-23-6; 131139-24-7; 131139-25-8; 131139-26-9; 131157-23-8 Role: PRP (Properties) (torsional rotation and resonance of, carbon-13 NMR study of)
Record created on 2006-03-03, modified on 2016-08-08