1250862-11-3Relevant academic research and scientific papers
Four-coordinate, trigonal pyramidal Pt(II) and Pd(II) complexes
Tsay, Charlene,Mankad, Neal P.,Peters, Jonas C.
, p. 13975 - 13977 (2010)
We report herein the characterization of electrophilic, trigonal bipyramidal {[SiP3R]Pt(L)}+ cations ([SiP 3R] = [(2-R2PC6H4) 3Si]; R = Ph, iPr) that feature weakly coordinated ligands including CH2Cl2, Et2O, 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, [SiP3iPr], it has proven possible to exclude the fifth axial donor to afford the rigorously four-coordinate, trigonal pyramidal (TP) complex {[SiP3 iPr]Pt}+. An isostructural TP palladium complex {[SiP 3iPr]Pd}+ is also accessible. Prototypical four-coordinate d8 platinum and palladium complexes are square planar. The TP d8 cations described herein are hence geometrically distinct.
