135808-18-3Relevant academic research and scientific papers
An NMR study of some seven-coordinate organophosphine carbonyl iodide derivatives of molybdenum(II) and tungsten(II)
Baker, Paul K.,Beckett, Michael A.,Severs, Lisa M.
, p. 213 - 217 (1991)
The seven-coordinate complexes (M = Mo, L = PMe2Ph; M = W, L = PMe2Ph, PMePh2 or PPh3) have been studied by variable temperature 31P- NMR spectroscopy; a fluxional process is observed and activation energies (ΔG* = 52-57 kJ mol-1) have been calculated from coalescence temperatures.Low temperature 13C- and 31P- spectra suggest that the lowest energy configuration of is based on that of a carbonyl ligand face-capped octahedron with overall Cs symmetry with the PMe2Ph ligands trans, and the two remaining carbonyl ligands presumably cis.
