title: Tridentate Lewis-acids based on triphenylsilane.
abstract: Several derivatives of the propeller-shaped ortho-substituted triphenylsilanes, carrying metal- or silicon-based acceptor groups, are reported. They were synthesized starting from tris(2-bromophenyl)fluorosilane, tris(2-vinylphenyl)fluorosilane and tris(2-ethynylphenyl)fluorosilane to generate a scope of Lewis-acidic molecules with different cavities. An improved synthetic protocol for donor-free tris(2-lithiophenyl)silanes is described. First attempts in host-guest chemistry to probe the binding between a threefold alane-functionalised ortho-substituted triphenylsilane and a tridentate Lewis-basic guest molecule are presented. The synthesis and a first molecular structure determination in the crystalline state of a bismasilatriptycene is reported.
authors.affiliation: Inorganic and Structural Chemistry, Centre for Molecular Materials CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany. mitzel@uni-bielefeld.de.
authors.forename: Janek
authors.initials: J
authors.lastname: Tomaschautzky
authors.affiliation: Inorganic and Structural Chemistry, Centre for Molecular Materials CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany. mitzel@uni-bielefeld.de.
authors.forename: Beate
authors.initials: B
authors.lastname: Neumann
authors.affiliation: Inorganic and Structural Chemistry, Centre for Molecular Materials CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany. mitzel@uni-bielefeld.de.
authors.forename: Hans-Georg
authors.initials: HG
authors.lastname: Stammler
authors.affiliation: Inorganic and Structural Chemistry, Centre for Molecular Materials CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany. mitzel@uni-bielefeld.de.
authors.forename: Andreas
authors.initials: A
authors.lastname: Mix
authors.affiliation: Inorganic and Structural Chemistry, Centre for Molecular Materials CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany. mitzel@uni-bielefeld.de.
authors.forename: Norbert W
authors.identifier: http://orcid.org/0000-0002-3271-5217
authors.initials: NW
authors.lastname: Mitzel