Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 13885-09-1, C24H19P. A document type is Article, introducing its new discovery., name: 2-(Diphenylphosphino)biphenyl
Spectroscopic and Computational Assessment of Silicon’s Electrophilicity in Phosphinosilylium Cations
An experimental method of determining the electrophilicity of silicon in phosphinosilylium cations is reported and compared to Djukic’s DFT method of computing relative intrinsic silylicity, Pi. We also establish linear correlations between silicon electrophilicity and 29Si NMR chemical shifts, DFT-computed silylicities, and the Tolman electronic parameter of the phosphine. These correlations were not universal, as deviations were observed for the most sterically hindered phosphines. Intermolecular silylium transfer experiments between phosphinosilyliums and added phosphines provided a thermodynamic assessment of the electrophilic character at silicon. This confirmed that relative intrinsic silylicity (Pi) and 29Si NMR chemical shifts are useful parameters for semiquantitatively determining the electrophilicity of the silyl group in a Lewis pair.
Interested yet? Keep reading other articles of 13885-09-1!, name: 2-(Diphenylphosphino)biphenyl
Reference£º
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate