title: Facile Assembly of Chiral Metallosquares by Using Enantiopure Tribenzotriquinacene Corner Motifs.
abstract: A pair of enantiomerically pure metallosquares based on linear platinum-diacetylene edges and tribenzotriquinacene corner units was synthesized. Their structures were characterized by (1) H-, (13) C- and (31) P NMR spectroscopy as well as MALDI-TOF mass spectrometry and circular dichroism. Based on DFT calculation, the optimized geometry possesses a distorted square conformation in which the four edges are not sitting on the same plane. The molecular square further self-assembled in the solid state to afford microspheres with diameter of approximately 300 nm, as determined by scanning electron microscopy.
authors.affiliation: Department of Chemistry, State Key Laboratory of Synthetic Chemistry and The Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin (Hong Kong).
authors.forename: Wen-Rong
authors.initials: WR
authors.lastname: Xu
authors.affiliation: Department of Chemistry, Center of Scientific Modelling and Computation, The Chinese University of Hong Kong, Shatin (Hong Kong).
authors.forename: Guang-Jie
authors.initials: GJ
authors.lastname: Xia
authors.affiliation: Department of Chemistry, State Key Laboratory of Synthetic Chemistry and The Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin (Hong Kong). hfchow@cuhk.edu.hk.
authors.forename: Hak-Fun
authors.initials: HF
authors.lastname: Chow
authors.affiliation: State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, 730000 Lanzhou (P. R. China). caoxplzu@163.com.
authors.forename: Xiao-Ping
authors.initials: XP
authors.lastname: Cao
authors.affiliation: Department of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, 33615 Bielefeld (Germany). dietmar.kuck@uni-bielefeld.de.
authors.forename: Dietmar
authors.initials: D
authors.lastname: Kuck
keywords: metallosquares; molecular spheres; self-assembly; supramolecular chemistry; tribenzotriquinacenes