Hypervalent Compounds of Organic Germanium, Tin and Lead Derivatives

Abstract

Introduction and Outline Self‐Associates Pentacoordinate Anionic Compounds Pentacoordinate Intermolecular Neutral Compounds Pentacoordinate Intramolecular Neutral Germanium Compounds Pentacoordinate Intramolecular Neutral Tin and Lead Compounds Pentacoordinate Cationic Compounds Hexacoordinate Anionic Compounds Hexacoordinate Neutral Compounds Hexacoordinate Cationic Tin Compounds Acknowledgments

Discrete palladium clusters that consist of two mutually bisecting perpendicular planes

“…13a Similarly, planar Pd 4 , Pd 5 , Pd 6 , and Pd 7 clusters were obtained when cyclotetrasilanes or a cyclopentasilane were used instead of the bicyclic ladder polysilane. 13b,c As heavier group-14 elements such as tin and germanium tend to adopt hypercoordinated structures such as veor six-coordinated structures, 14 we hypothesized that the use of organotin and organogermanium compounds with E-E (E ¼ Sn, Ge) bonds could lead to an expansion of the architectures of the obtained clusters via linking of the subunits through hypercoordination. In this paper, we wish to report that tristannane or cyclohexagermane contribute to the formation of two palladium clusters, 2 and 3, which consist of two planar palladium subunits that bisect one another with a dihedral angle of ca.…”