High-resolution solid-state platinum-195 nuclear magnetic resonance

Abstract

The potential of solid-state ¹⁹⁵Pt n.m.r. spectroscopy for chemical applications has been explored. Spectra have been obtained using the cross-polarisation, high-power decoupling, and magic-angle rotation techniques. The large shielding anisotropy present for most compounds gives rise to many spinning sidebands, which contain a wealth of information regarding shielding tensors. Two different solid-state (¹⁹⁵Pt, ³¹P) scalar coupling constants are reported for cis-[PtMe₂(PEt₃)₂], and an X-ray diffraction study confirms that the PEt₃ groups are non-equivalent. The interplay of scalar, dipolar, and shielding tensors is discussed.