title: Crystal structure of 1,1,2,2-tetra-methyl-1,2-bis-(2,3,4,5-tetra-methyl-cyclo-penta-2,4-dien-1-yl)disilane.
abstract: The mol-ecular structure of the title compound, C22H38Si2, features a trans arrangement of the cyclo-penta-dienyl rings to avoid steric strain [C-Si-Si-C torsion angle = -179.0 (5)°]. The Si-Si bond length is 2.3444 (4) Å. The most notable inter-molecular inter-actions in the mol-ecular packing are C-H⋯π contacts that lead to the formation of wave-like supra-molecular chains along the b axis.
authors.affiliation: Leibniz-Institut für Katalyse e. V. der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Godemann
authors.affiliation: Leibniz-Institut für Katalyse e. V. der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany.
authors.forename: Anke
authors.initials: A
authors.lastname: Spannenberg
authors.affiliation: Leibniz-Institut für Katalyse e. V. der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany.
authors.forename: Torsten
authors.initials: T
authors.lastname: Beweries
keywords: ansa ligand; crystal structure; disilane