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Synthesis and characterization of molybdenum(0) and tungsten(0) carbonyl derivatives of methylenebis[diphenylphosphine oxide] and bis[(diphenylphosphinyl)methyl]phenylphosphine Oxide

The reaction of molybdenum and tungsten hexacarbonyls with the ligands [(C6H5)2P(O)]2CH2 (MDPO) and [(C6H5)2P(O)CH2]2P(O)C6H5, (RPPh) has been investigated. The new compounds cis-M(CO)4MDPO, cis-M(CO)4RPPh, fac-M2(CO)6(MDPO)3 and fac-M(CO)3RPPh, where M = Mo0 or W0, have been prepared. All complexes isolated are diamagnetic with an octahedral geometry. Results of IR, Raman and NMR spectra have been discussed.

molybdenum ; tungsten ; carbonyl ; complexes ; octahedral geometry ; phosphine oxides

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