Esteruelas, M.A. Martínez, A. Oliván, M. Oñate, E. Kinetic Analysis and Sequencing of Si-H and C-H Bond Activation Reactions: Direct Silylation of Arenes Catalyzed by an Iridium-Polyhydride J. Am. Chem. Soc. 10.1021/jacs.0c07578 2020 2020