Cationic Platinum(II) σ-SiH Complexes in Carbon Dioxide Hydrosilation.

Pablo RíosJosefina DíezJoaquín López-SerranoAmor RodríguezSalvador Conejero

Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2016)

The low-electron-count cationic platinum complex [Pt(ItBu')(ItBu)][BArF ], 1, interacts with primary and secondary silanes to form the corresponding σ-SiH complexes. According to DFT calculations, the most stable coordination mode is the uncommon η1 -SiH. The reaction of 1 with Et2 SiH2 leads to the X-ray structurally characterized 14-electron PtII species [Pt(SiEt2 H)(ItBu)2 ][BArF ], 2, which is stabilized by an agostic interaction. Complexes 1, 2, and the hydride [Pt(H)(ItBu)2 ][BArF ], 3, catalyze the hydrosilation of CO2 , leading to the exclusive formation of the corresponding silyl formates at room temperature.

Keyphrases

room temperature
carbon dioxide
density functional theory
ionic liquid
electron microscopy
high resolution
electron transfer
molecular dynamics
molecular dynamics simulations
magnetic resonance imaging
computed tomography
peripheral blood
molecular docking
solar cells
dual energy
crystal structure