کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1325503 | 977386 | 2007 | 7 صفحه PDF | دانلود رایگان |
We report a new synthesis and characterization of Ir(C2H4)2(C5H7O2) [(acetylacetonato)-bis(η2-ethene)iridium(I)], prepared from (NH4)3IrCl6 · H2O in a yield of about 45%. The compound has been characterized by X-ray diffraction crystallography, infrared, Raman, and NMR spectroscopies and calculations at the level of density functional theory. Ir(C2H4)2(C5H7O2) is isostructural with Rh(C2H4)2(C5H7O2), but there is a substantial difference in the ethylene binding energies, with Ir–ethylene having a stronger interaction than Rh–ethylene; two ethylenes are bound to Ir with a binding energy of 94 kcal/mol and to Rh with a binding energy of 70 kcal/mol.
We report a new synthesis and a full experimental and theoretical characterization of Ir(C2H4)2(C5H7O2) [(acetylacetonato)-bis(η2-ethene)iridium(I)]. The crystal structure of Ir(C2H4)2(C5H7O2) is isostructural to that of Rh(C2H4)2(C5H7O2), but there is a substantial difference in the ethylene binding energies in these two compounds, which are valuable as precursors of oxide-supported catalysts with reactive ethylene ligands.Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 692, Issue 10, 15 April 2007, Pages 2107–2113