Berlin 2018 – scientific programme

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O: Fachverband Oberflächenphysik

O 49: Poster: Nanostructures on Surfaces I

O 49.6: Poster

Tuesday, March 13, 2018, 18:15–20:30, Poster A

A Family of Hierarchical Molecular Fractal Porous Networks Constructed by a Small Molecule at Surface — •Jingxin Dai, Jian Shang, Wenhui Zhao, Lingbo Xing, and Kai Wu — SKLSCUSS, BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

By using B3PB as the precursor, standalone molecular fractals (Sierpiński triangles, ST-n, n = 0, 1, 2, 3, 4, etc.) consisting of B3PB were constructed on Ag(111). The B3PB-ST-n fractals further formed new building motifs that self-assembled into a whole series of hierarchical two-dimensional molecular networks via a unified assembling pattern (rhombus unit cell containing two opposite chiral structures of the ST-n series). This unique hierarchical molecular self-assembly involved both fractal features and hierarchical features at the same time, and could provide new possibilities towards novel and complex hierarchical assemblies.