Abstract
In (Ph3PCu)2Ph2C2B9H9 (Ia) and {(o-tol)3PCu}2Ph2C2B9H9 (Ic) one copper atom occupies a polyhedral vertex position but is slipped away from the cage carbon atoms (the latter the more so) to relieve phosphine ṫ Ccage-phenyl crowding. The second copper atom is exo-facially bonded to the B(8)B(9)B(12) triangular face, in contrast to the situation in (Ph3PCu)2C2B9H11, where the exo-metal caps the Cu(3)B(4)B(8) triangle. Compounds Ia, Ic and the related species (Cy3PCu)2Ph2C2B9H9 (Ib) display fluxionality in solution at room temperature that renders equivalent the two phosphorus nuclei. It is speculated that this fluxional process involves a unique bis(eto-metal) nido carbaborane.
Original language | English |
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Pages (from-to) | C9-C11 |
Number of pages | 3 |
Journal | Journal of Organometallic Chemistry |
Volume | 481 |
Issue number | 2 |
DOIs | |
Publication status | Published - 15 Nov 1994 |
Keywords
- Boron
- Carborane
- Copper
- Fluxionality
- Metalla-carborane
- X-ray diffraction
ASJC Scopus subject areas
- Biochemistry
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Materials Chemistry