Stacked molecular triangles: self-assembly using coordination chemistry and hydrogen bonding

Abstract

The combination of the cis-blocked platinum(II) unit (bu₂bipy)Pt²⁺ with the unsymmetrical bis(pyridine) ligand 4-NC₅H₄C(O)NH-4-C₅H₄N gives the molecular triangle complex [{Pt(bu₂bipy)(μ-4-NC₅H₄C(O)NH-4-C₅H₄N)}₃]⁶⁺, which forms stacked pairs in the solid state through intertriangle NH⋯OC hydrogen bonds and Pt⋯OC secondary bonds.