The first examples of a pentacarbonylzirconium complex, [Zr(CO)5(SnMe3)2]2- and an arylphosphine substituted zirconium(0) species, [Zr(CO)4(dppe)SnMe3]- were obtained by the reaction of [Zr(η4-naphthalene)3]2- with Me3SnCl followed by carbonylation in the absence or presence of dppe, respectively. Both compounds were structurally characterized and represent the initial organotin derivatives of Zr(0). Solutions of [Zr(CO)5(SnMe3)2]2- decompose within hours in CH3CN at 20°C to provide an especially robust formally divalent zirconium complex, [Zr(CO)4(SnMe3)4]2- containing eight coordinate zirconium. The latter has been unambiguously characterized by IR, 13C and 119Sn NMR spectra.
Bibliographical noteFunding Information:
We thank the US National Science Foundation and the Petroleum Research Fund, administered by the American Chemical Society for support of this research and are grateful to Suzanne Exstrom for assistance in the preparation of the manuscript. J.E.E. thanks the Alexander von Humboldt Foundation for a Senior US Scientist Award which enabled him to complete the manuscript while in residence at the Institiit ftir Anor-ganische Chemie der Universit~it Miinchen, which is under the direction of Prof. Dr. Wolfgang Beck.
- Carbonyl complex