19F and 199Hg NMR of trimeric perfluoro-ortho-phenylenemercury

19F and 199Hg high-resolution solution NMR spectra were acquired for cyclic trimeric perfluoro-ortho-phenylenemercury. Even with the high superconducting magnetic fields currently available, the 19F spectrum was not interpretable with a simple first-order analysis. Spectroscopic parameters for chemical shift and scalar coupling interactions in the NMR spectra were extracted from four- and five-spin simulations. Differential line widths in the 19F spectrum result from scalar coupling to the 199Hg.