Trigonal-bipyramidal, divalent Group 10 metal complexes supported by a tris(phosphino)silyl ligand
Abstract
The mono-anionic, tetradentate tris(phosphino)silyl ligand, [SiP_R^3]- = [(2-R_2PC_6H_4)_3Si]-, provides access to electrophilic, trigonal bipyramidal Group 10 cations {[SiP_R^3]M(L)}+ that feature weakly coordinated ligands including toluene, dihydrogen, and dinitrogen. The toluene adduct {[SiP^(Ph)_3]Pt(tol)}+ shows a close contact between the metal center and an aryl C-H bond in the solid state. For the more electron-rich isopropylsubstituted ligand, it is possible to exclude the fifth, axial ligand to afford the four-coordinate, trigonal pyramidal complexes {[SiP^(iPr)_3]Pt}+ and {[SiP^(iPr)_3]Pd}+, in contrast to prototypical d^8 square-planar Pt and Pd geometries. The corresponding cationic Ni complexes reversibly coordinate dinitrogen and dihydrogen.
Additional Information
© 2011 American Chemical Society.Additional details
- Eprint ID
- 47764
- Resolver ID
- CaltechAUTHORS:20140801-082324981
- Created
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2014-08-01Created from EPrint's datestamp field
- Updated
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2019-11-26Created from EPrint's last_modified field