Formation of Halogen Bond-Based 2D Supramolecular Assemblies by Electric Manipulation.
J Am Chem Soc
; 137(19): 6128-31, 2015 May 20.
Article
em En
| MEDLINE
| ID: mdl-25948133
ABSTRACT
Halogen bonding has attracted much attention recently as an important driving force for supramolecular assembly and crystal engineering. Herein, we demonstrate for the first time the formation of a halogen bond-based open porous network on a graphite surface using ethynylpyridine and aryl-halide based building blocks. We found that the electrical stimuli of a scanning tunneling microscopy (STM) tip can induce the formation of a binary supramolecular structure on the basis of halogen bond formation between terminal pyridyl groups and perfluoro-iodobenzene. This electrical manipulation method can be applied to engineer a series of linear or porous structures by selecting halogen bond donor and acceptor fragments with different symmetries, as the directional interactions ultimately determine the structural outcome.
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MEDLINE
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En
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J Am Chem Soc
Ano de publicação:
2015
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Article