Abstract

Solid-state nuclear magnetic resonance and vibrational spectroscopic studies are reported for bis(pentacarbonylmanganese)diphenyltin(IV) and bis(pentacarbonylmanganese)diphenyllead(IV). The solid-state, CP-MAS, 119Sn and 207Pb NMR spectra of these complexes each reveal a single asymmetric undecet due to the 1J119Sn–55Mn and 207Pb–55Mn spin–spin couplings and second-order quadrupole–dipole effects. The 1JSn–Mn and 1JPb,-Mn values are 139±1 and 228±1Hz, respectively. The 119Sn and 207Pb chemical shift anisotropies have been determined. The crystal structure of the tin compound has been re-examined.

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