کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1323306 | 1499929 | 2012 | 6 صفحه PDF | دانلود رایگان |

Chiral salen complexes with C2-symmetry were prepared by the complexation of a selection of transition metal salts with a novel ligand obtained via controlled diastereoselective diaza-Cope rearrangement of a diimine which was resulted from the condensation 2,2′-[(1R,2R)-1,2-diaminoethane-1,2-diyl]diphenol with formylferrocene. On the effect of air the iron(II)-complex dissolved in DCM underwent oxidation affording a square pyramidal iron(III)-complex with coordinated chlorine atom in the apical position. It was also found that the two ferrocenyl groups present in the cobalt(II)-complex remained intact in the course of iodine-mediated oxidation leading a diamagnetic cobalt(III)-complex. The structures of the new compounds were established by single crystal x-ray diffraction as well as IR 1H-, 13C- and 15N NMR spectroscopy.
Chiral salen complexes with C2-symmetry were prepared by the complexation of a selection of transition metal salts with a novel ligand containing two ferrocenyl groups. The structures of the complexes were determined by spectroscopic methods, DFT modelling and single crystal x-ray diffraction.Figure optionsDownload as PowerPoint slideHighlights
► Facile synthesis of a novel 1,2-diferrocenylethane-1,2-diamine-based C2-chiral salen ligand.
► Construction and structure of a series of its transition metal complexes.
► DFT modelling of the complexes susceptible to oxidation.
Journal: Journal of Organometallic Chemistry - Volumes 706–707, 1 June 2012, Pages 46–51