title: [μ-(3,4,5,6,7-η:1,9,10,11,12)-5,11-Di-tert-butyl-2,2,8,8-tetra-methyl-2,8-disila-tricyclo-[7.3.0.0(3,7)]dodeca-tetra-enedi-yl]bis-[dicarbonyl-ruthenium(I)].
abstract: The title compound, [Ru(2)(C(22)H(34)Si(2))(CO)(4)], contains two Ru(I) atoms linked by a bridging (η(5)-(t)BuC(5)H(2))(2)(SiMe(2))(2) ligand ((t)Bu is a tert-butyl and Me is a methyl group) with an Ru-Ru bond length of 2.8401 (7) Å. The dihedral angle between the planes of the cyclo-penta-dienyl rings of the ligand is 123.13 (19)°. The four terminal carbonyl ligands are bound in a symmetrical and staggered array. In the crystal, mol-ecules are linked via pairs of C-H⋯O hydrogen bonds, forming inversion dimers.
authors.affiliation: College of Chemistry and Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387,  People's Republic of China.
authors.forename: Bolin
authors.initials: B
authors.lastname: Zhu