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Phosphorus-carbon(pyridyl) bond cleavage on reacting diphenyl-2-pyridylphosphine with triiron dodecacarbonyl |
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| Authors: | Pankaj Das,Malabika Borah,Franç ois Y. Pé tillon |
| Affiliation: | a Department of Chemistry, Dibrugarh University, Dibrugarh, 786004 Assam, India b Centre Commun d’Analyse par Diffraction des Rayons X, University of Bretagne Occidentale, France c CNRS, UMR 6521, Chimie, Electrochimie Moleculaires et Chimie Analytique, University of Bretagne Occidentale, C.S. 93837, 29238 Brest Cedex 3, France |
| 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. |
| Keywords: | Iron complexes Bimetallic Phosphorus-carbon bond cleavage X-ray crystal structures Pyridylphosphine |
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