title: A new structural motif for an enantiomerically pure metallosupramolecular Pd₄L₈ aggregate by anion templating.
abstract: An enantiomerically pure BINOL-based bis(3-pyridyl) ligand 1 assembles into a homochiral [Pd4(1)8] complex upon coordination to tetravalent Pd(II) ions. The formation of this aggregate is templated by two tetrafluoroborate counterions that are encapsulated in two peripheral cavities. The resulting structure is a new structural motif for this kind of metallosupramolecular assemblies that arranges the palladium ions in a distorted tetrahedral fashion and forces ligand 1 to adopt two different conformations. Both phenomena are unique and cause an overall three-dimensional structure that has another confined, chiral, and hydrophilic central cavity.
authors.affiliation: Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn (Germany).
authors.forename: Christoph
authors.initials: C
authors.lastname: Klein
authors.forename: Christoph
authors.initials: C
authors.lastname: Gütz
authors.forename: Maximilian
authors.initials: M
authors.lastname: Bogner
authors.forename: Filip
authors.initials: F
authors.lastname: Topić
authors.forename: Kari
authors.initials: K
authors.lastname: Rissanen
authors.forename: Arne
authors.initials: A
authors.lastname: Lützen
keywords: metallosupramolecular chemistry; palladium complexes; self-assembly; template effects; tetrafluoroborate