Article
The Role of the “Ligand Periphery” in the Coordination of Tripodal Triamidostannates(II) to Iridium: Simple Ligation vs. Cyclometallation†
Michaela Kilian,
Hubert Wadepohl,
Lutz H. Gade Prof. Dr.,
Michaela Kilian
Heidelberg/Germany, Anorganisch-Chemisches Institut der Universität
Search for more papers by this authorHubert Wadepohl
Heidelberg/Germany, Anorganisch-Chemisches Institut der Universität
Search for more papers by this authorCorresponding Author
Lutz H. Gade Prof. Dr.
Heidelberg/Germany, Anorganisch-Chemisches Institut der Universität
Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg/Germany, Tel.: +49-6221-548443, Fax: +49-6221-545609Search for more papers by this authorMichaela Kilian,
Hubert Wadepohl,
Lutz H. Gade Prof. Dr.,
Michaela Kilian
Heidelberg/Germany, Anorganisch-Chemisches Institut der Universität
Search for more papers by this authorHubert Wadepohl
Heidelberg/Germany, Anorganisch-Chemisches Institut der Universität
Search for more papers by this authorCorresponding Author
Lutz H. Gade Prof. Dr.
Heidelberg/Germany, Anorganisch-Chemisches Institut der Universität
Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg/Germany, Tel.: +49-6221-548443, Fax: +49-6221-545609Search for more papers by this author†
Dedicated to Professor Heinrich Nöth on the Occasion of his 80th Birthday
Abstract
Reaction of the triamidostannates(II) MeSi{SiMe2N(3,5-xyl)}3SnLi(OEt2) (2a) and MeSi{SiMe2N(p-tol)}3SnLi(OEt2) (2b) with [IrCl(CO)(PPh3)2] gave the IrI-Sn complex [MeSi{SiMe2N(3,5-xyl)}3SnIr(PPh3)2(CO)] (3a) for the former. In contrast, for the tolyl stannate CH-activation occurred to give the IrIII compound [MeSi{SiMe2N(p-tol)}2{SiMe2N(2-C6H3-4-CH3)}SnIr(H)(PPh3)2(CO)] (3b). The latter is thus avoided by introduction of suitably placed substituents in the peripheral aryl groups of the triamidostannate ligand.
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