کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1326109 | 1499953 | 2005 | 9 صفحه PDF | دانلود رایگان |
The metal–metal bond in [M2(CO)9{C(OEt)R}] (M = Mn (1), Re (2), R = 2-thienyl (a), 2-bithienyl (b)) is readily cleaved with halogens to afford cis-[M(CO)4(X){C(OEt)R}] (M = Mn (3), X = I; M = Re (4), X = Br). In the binuclear manganese complex, the carbene ligand is found in an axial position due to steric reasons, whereas the electronically favoured equatorial position is found for the carbene ligands in the corresponding rhenium complexes and in [Mn2(CO)9{C(NH2)thienyl}] (5a), containing a sterically less demanding NH2-substituent.
The metal–metal bond in [M2(CO)9{C(OEt)R}] (M = Mn, Re, R = 2-thienyl, 2-bithienyl) is readily cleaved with halogens to afford cis-[M(CO)4(X){C(OEt)R}] (M = Mn, X = I; M = Re, X = Br). In the binuclear manganese complex, the carbene ligand is found in an axial position, whereas the electronically favoured equatorial position is found for the carbene ligands in the corresponding rhenium complex.Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 690, Issues 24–25, 1 December 2005, Pages 5929–5937