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Syntheses and crystal structures of lithium derivatives of diphosphanes R2P–P(SiMe3)Li · 3L, R = Ph, Pr and Pr2N, L = THF or DME |
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| Authors: | Wioleta Doma&#x;ska-Babul Katarzyna Baranowska Rafa&#x; Grubba Eberhard Matern Jerzy Pikies |
| Institution: | aChemical Faculty, Department of Inorganic Chemistry, Gdańsk University of Technology, G. Narutowicza Street 11/12. Pl-80-952 Gdańsk, Poland bInstitut für Anorganische Chemie, Universität Karlsruhe (TH), D-76128 Karlsruhe, Germany |
| Abstract: | The reactions of R2P–P(SiMe3)2 (R = Ph, iPr and iPr2N) with BuLi in THF or DME solution lead to ion-contacted lithium derivatives R2P–P(SiMe3)Li · 3THF (R = iPr, iPr2N) with tetrahedrally surrounded Li atoms and to the solvent-separated ionic Li · 3DME]+Ph2P–PSiMe3]? with an octahedrally surrounded Li atom as confirmed by X-ray crystal structure analysis. The reaction of BuLi with Ph2P–P(SiMe3)2 is accompanied with a significant side-reaction leading to Ph2P–PPh2 and to LiP(SiMe3)2. |
| Keywords: | P ligands Diphosphanes Phosphanides Lithium |
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