کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1328288 | 1499949 | 2007 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and reactions of heterodinuclear organopalladium–cobalt complexes acting as copolymerization catalyst for aziridine and carbon monoxide Synthesis and reactions of heterodinuclear organopalladium–cobalt complexes acting as copolymerization catalyst for aziridine and carbon monoxide](/preview/png/1328288.png)
A series of heterodinuclear acylpalladium–cobalt complexes having a bidentate nitrogen ligand, L2(RCO)Pd–Co(CO)4 (L2 = bpy, R = Me (5), Ph (6); L2 = tmeda, R = Me (7), Ph (8); L2 = phen, R = Me (9), Ph (10)) are prepared by metathetical reactions of PdRIL2 with Na+[Co(CO)4]− followed by treatment with CO. These complexes are characterized by NMR and IR spectroscopies and elemental analyses, and the molecular structures of 6, 8, and 9 are determined by X-ray structure analysis. Geometry at Pd is essentially square planar and the Co atom is considered to have d10 tetrahedral structure, where cobalt(-I) anion coordinates to palladium(II) cation. Heterodinuclear organopalladium–cobalt complexes are shown to catalyze copolymerization of aziridines and CO under mild conditions. Reaction of (dppe)MePd–Co(CO)4 (1) with aziridine gives a cationic (aziridine)palladium(II) complex with [Co(CO)4]− anion, [PdMe(aziridine)(dppe)]+[Co(CO)4]− (13).
A series of heterodinuclear acylpalladium–cobalt complexes having a bidentate nitrogen ligand, L2(RCO)Pd–Co(CO)4 (L2 = bpy, R = Me, Ph; L2 = tmeda, R = Me, Ph; L2 = phen, R = Me, Ph) are prepared by metathetical reactions of PdRIL2 with Na+[Co(CO)4]− followed by treatment with CO. Heterodinuclear organopalladium–cobalt complexes are shown to catalyze copolymerization of aziridines and CO under mild conditions.Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 692, Issues 1–3, 1 January 2007, Pages 26–35