โ Scribed by Samuel O. Grim; Robert A. Ference
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract An investigation of bis(diphenylphosphino)methane dioxide (dppm dioxide), __cis__โ[PtCl~2~(PPh~3~)~2~] __cis__โ[PtCl~2~{P(__p__โC~6~H~4~Cl)~3~}~2~] and __cis__โ[PtBr~2~(PPh~3~)~2~] by solidโstate CP/MAS ^31^P NMR spectroscopy, xโray powder diffraction and ^1^H, ^13^C{^1^H} and ^31^P{^1^
## Abstract Analysis of the proton NMR spectra of Pr^1^PCINMe~2~ indicates magnetic nonโequivalence of the methyl groups due to the adjacent asymmetric phosphorus atom. High temperatures, or the addition of chloride ion, induce an exchange reaction with inversion of configuration at phosphorus. The
The olefins Ph,P(X)CH=CHR [X=lone pair, 0, S, CH31; R=CH3, Ph, P(X)PhJ have been prepared and their 'H, 13C and "P N M R spectra measured. trans 'qP(IV)C] (range 18.3-25.7HzI is greater than cis 3J[P(IV)C] (range 6.9-11 Hz) but this relationship does not hold for P(II1) compounds. In the "P spectra