title: Two dimensional chiral networks emerging from the aryl-F...H hydrogen-bond-driven self-assembly of partially fluorinated rigid molecular structures.
abstract: Self-assembly of the partially fluorinated rigid molecules physisorbed at solution/graphite interface has been investigated by scanning tunneling microscopy. Upon adsorption, both the branched star-shaped compound 1 and the angulate rod 2 compromising diacetylene and acetylene interlinked benzene and pentafluorobezene formed two-dimensional chiral porous networks. The spontaneous formation of these architectures is likely attributed to the two effects: the compensation of the dipole moments of the branches and the formation of Ar-H...F hydrogen bonds. These results demonstrate that the immobilization of molecules at the liquid/solid interface can be driven by these weak intermolecular interactions instead of van der Waals interactions between alkyl chains and substrate.
authors.affiliation: Physikalisches Institut, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany.
authors.forename: Zhongcheng
authors.initials: Z
authors.lastname: Mu
authors.forename: Lijin
authors.initials: L
authors.lastname: Shu
authors.forename: Harald
authors.initials: H
authors.lastname: Fuchs
authors.forename: Marcel
authors.initials: M
authors.lastname: Mayor
authors.forename: Lifeng
authors.initials: L
authors.lastname: Chi
mesh_terms: D000114:Acetylene / Q000737:chemistry; D006108:Graphite / Q000737:chemistry; D006845:Hydrocarbons, Fluorinated / Q000138:chemical synthesis / Q000737:chemistry*; D006860:Hydrogen Bonding; D016252:Microscopy, Scanning Tunneling; D008968:Molecular Conformation; D015394:Molecular Structure; D016062:Porosity; D013499:Surface Properties
chemical_list: D006845:Hydrocarbons, Fluorinated; D006108:Graphite; D000114:Acetylene