Nuclear Magnetic Resonance Spectra of Silicon Hydrides and Derivatives. I. Coupling Constants Involving Hydrogen

Measurements of the H–H, H–Si, H–F and Si–F coupling constants for the halogen-substituted monosilanes, disiloxane, disilyl sulfide and trisilylamine are described. The failure of the simple valence-bond calculation to interpret the H–H coupling constants as a function of the H–Si–H angle is attributed to the d orbitals of silicon. A comparison of the H–H and H–Si coupling constants is also presented.