title: (η-Penta-methyl-cyclo-penta-dien-yl)(η-p-toluene-sulfonamide)ruthenium(II) tetra-phenyl-borate.
abstract: The crystal structure of the title compound, [Ru(C(10)H(15))(C(7)H(9)NO(2)S)]C(24)H(20)B, has been determined as part of our investigation into the structural and biological properties of organometallic Ru(II)-arene-Cp* complex salts of the type [R-PhRuCp*](+)·X(-) (where Cp* is penta-methyl-cyclo-penta-diene). Tethering the RuCp* group to the benzene ring of p-toluene-sulfonamide results in only minor changes to the mol-ecular geometry of the sulfonamide, but, together with crystallization as the [BPh(4)](-) salt, effectively blocks involvement of the sulfonamide group in N-H⋯O hydrogen-bonding networks.
authors.affiliation: Eskitis Institute for Cell and Molecular Therapies, Griffith University, Brisbane 4111, Australia.
authors.forename: Bradley T
authors.initials: BT
authors.lastname: Loughrey
authors.forename: Michael L
authors.initials: ML
authors.lastname: Williams
authors.forename: Sally-Ann
authors.initials: SA
authors.lastname: Poulsen
authors.forename: Peter C
authors.initials: PC
authors.lastname: Healy