کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1307551 | 975144 | 2011 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Ligand rearrangement and oxidation during preparation of diiron hydrogenase active site models [(μ-SCH2)2NCH2CO2Me]Fe2(CO)5(Ph2PNHPy-4) and [(μ-SCH2)2NCH2CO2Me]Fe2(CO)5[Ph2PP(O)Ph2] Ligand rearrangement and oxidation during preparation of diiron hydrogenase active site models [(μ-SCH2)2NCH2CO2Me]Fe2(CO)5(Ph2PNHPy-4) and [(μ-SCH2)2NCH2CO2Me]Fe2(CO)5[Ph2PP(O)Ph2]](/preview/png/1307551.png)
Reaction of [(μ-SCH2)2NCH2CO2Me]Fe2(CO)6 with 4-PyN(PPh2)2 (Py = C5H4N) in the presence of the decarbonylating agent Me3NO·2H2O afforded unexpected complexes [(μ-SCH2)2NCH2CO2Me]Fe2(CO)5(Ph2PNHPy-4) (1) and [(μ-SCH2)2NCH2CO2Me]Fe2(CO)5[Ph2PP(O)Ph2] (2) in 40% and 14% yields, respectively. The new complexes 1 and 2 have been characterized by elemental analysis, IR and 1H (31P, 13C) NMR spectroscopic techniques. In addition, their structures were determined by single-crystal X-ray diffraction analysis, indicating that the monophosphine ligands in complexes 1 and 2 both reside in an axial position of the square-pyramidal coordination sphere of the Fe atoms.
Reaction of [(μ-SCH2)2NCH2CO2Me]Fe2(CO)6 with 4-PyN(PPh2)2 in the presence of Me3NO·2H2O gave two unexpected complexes [(μ-SCH2)2NCH2CO2Me]Fe2(CO)5(Ph2PNHPy-4) and [(μ-SCH2)2NCH2CO2Me]Fe2(CO)5[Ph2PP(O)Ph2]. The new complexes were characterized by elemental analysis, spectroscopies, as well as by single-crystal X-ray diffraction analysis.Figure optionsDownload as PowerPoint slideHighlights
► We prepared two unexpected compounds containing monophosphines.
► The new complexes were characterized by elemental analysis and spectroscopy.
► The structures were determined by single crystal X-ray diffraction analysis.
Journal: Inorganica Chimica Acta - Volume 378, Issue 1, 30 November 2011, Pages 338–341