Analysis of the proton magnetic resonance spectra of phenol and thiophenol and their methyl, silyl and germyl derivatives
Abstract
The proton magnetic resonance spectra of the compounds C6H5OR and C6H5SR (R = H, CH3, SiH3, GeH3) are reported. The aromatic regions have been analyzed as AA′BB′C spin systems by a least-squares method of line shape analysis. A comparison of the values obtained for the n.m.r. parameters suggests that any involvement of the silicon or germanium d orbitals in the bond to oxygen or sulphur does not strongly influence the bonding in the aromatic ring.