Four-Coordinate, Trigonal Pyramidal Pt(II) and Pd(II) Complexes
Abstract
We report herein the characterization of electrophilic, trigonal bipyramidal {[SiP_3^R]Pt(L)}+ cations ([SiP_3 ^R] ) [(2-R_2PC_6H_4)_3Si]; R ) Ph, ^iPr) that feature weakly coordinated ligands including CH_2Cl_2, Et_2O, toluene, and H_2. A cationic toluene adduct that shows a close platinum aryl C-H σ-contact is perhaps most noteworthy in this context. For the isopropyl-substituted ligand, [SiP_3^(iPr)], it has proven possible to exclude the fifth axial donor to afford the rigorously four-coordinate, trigonal pyramidal (TP) complex {[SiP_3^(iPr)]Pt}^+. An isostructural TP palladium complex {[SiP_3^(iPr)]Pd}^+ is also accessible. Prototypical four-coordinate d^8 platinum and palladium complexes are square planar. The TP d^8 cations described herein are hence geometrically distinct.
Additional Information
© 2010 American Chemical Society. Published In Issue October 13, 2010. Article ASAP September 21, 2010. Received: June 16, 2010. This work was generously supported by the NSF (CHE-0750234). We are grateful to Paul F. Oblad for conducting preliminary synthetic studies and to Dr. Peter Müller and Dr. David VanderVelde for assistance with XRD and NMR studies, respectively.Attached Files
Supplemental Material - ja105284p_si_001.pdf
Supplemental Material - ja105284p_si_003.cif
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Additional details
- Eprint ID
- 20638
- Resolver ID
- CaltechAUTHORS:20101102-101005798
- NSF
- CHE-0750234
- Created
-
2010-11-02Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field