title: Saturated Heavier Group 14 Compounds as σ -Electron-Acceptor (Z-Type) Ligands.
abstract: This review article describes the chemistry of transition-metal complexes containing heavier group 14 elements (Si, Ge, and Sn) as the σ-electron-acceptor (Z-type) ligands and discusses the characteristics of bonds between the transition metal and Z-type ligand. Moreover, we review the iridium hydride mediated cleavage of E-X bonds (E=Si, Ge; X=F, Cl), where the key intermediates are pentacoordinate silicon or germanium compounds bearing a dative M→E bond.
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai, Osaka 599-8531, Japan.
authors.forename: Hajime
authors.initials: H
authors.lastname: Kameo
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, Osaka, 558-8585, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nakazawa
keywords: Si-F activation; bond theory; group 14 elements; hypervalent compounds; transition metals