Phosphorus–carbon(pyridyl) bond cleavage on reacting diphenyl-2-pyridylphosphine with triiron dodecacarbonyl

Abstract : The reaction of [Fe3(CO)12] with diphenyl-2-pyridylphosphine (PPh2Py) in refluxing toluene for 1 h afforded three compounds, [Fe2(CO)6(μ-PPh2)(μ-κ2-C,N-C5H4N)] (1), [Fe(CO)4(κ1-P-PPh2Py)] (2), and [Fe(CO)3(κ1-P-PPh2Py)2] (3) in 23%, 10% and 3.5% yields after work-up, respectively. The PPh2Py ligand acts as a terminal P-donor ligand in 2 and 3, while in 1 it underwent a selective phosphorus–carbon(pyridyl) bond cleavage to afford phosphido- and pyridyl-bridged ligands. The complexes were characterized by elemental analysis, FAB-mass, FTIR, 1H and 31P–{1H}NMR spectroscopies. Compounds 1 and 2 were also characterized by X-ray single crystal.
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http://hal.univ-brest.fr/hal-01577236
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Soumis le : vendredi 25 août 2017 - 10:19:50
Dernière modification le : mercredi 11 avril 2018 - 10:56:01

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Das Pankaj, Borah Malabika, François Michaud, François Y. Pétillon, Philippe Schollhammer. Phosphorus–carbon(pyridyl) bond cleavage on reacting diphenyl-2-pyridylphosphine with triiron dodecacarbonyl. Inorganica Chimica Acta, Elsevier, 2011, 〈http://www.sciencedirect.com/science/article/pii/S0020169311005342〉. 〈10.1016/j.ica.2011.06.035〉. 〈hal-01577236〉

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