Disilanes Containing Two High-Coordinate Silicon Atoms Bridged by Carboxylate Ligands: Synthesis, Structure, and Dynamic Behavior

Disilanes bearing four carboxylate ligands
have a trigonal bipyramidal geometry around each
silicon atom with two bridging carboxylate ligands with
the apical Si−O axes, which are parallel to each other,
in the crystalline state, while such a structure is in
equilibrium with a tetrahedral structure in solution.