Construction of Microbelts through the Coassembly of a Disclike Molecule and Primary Alkyl Ammoniums: A Noncovalent Strategy to Mimic Covalently Bonded pi-Core Alkyl Chain Structure
Ze-Yun Xiao, Xin Zhao, Xi-Kui Jiang, Zhan-Ting Li
Langmuir | AMER CHEMICAL SOC | Published : 2010
In this letter, we report the fabrication of microbelts through the coassembly of hexa-2-pyridyl-hexaazatriphenylen (HPHAT), a disklike pi-conjugated molecule, with primary alkyl ammonium triflate. The strategy is first to construct hydrogen-bonded complexes between HPHAT and primary alkyl ammoniums to mimic covalently bonded pi-core alkyl chain structures, and then the complexes self-assemble into microbelts driven by pi-pi stacking in the pi core and van der Waals interactions between the peripheral alkyl chains. The morphology of as-prepared microbelts has been characterized with scanning electron microscopy (SEM), optical microscopy, polarizing microscopy, and transmission electron micro..View full abstract
Awarded by NSFC
Awarded by NBRP
Awarded by Science and Technology Commission of Shanghai Municipality
We thank the NSFC (20972180, 20921091, 20974118, and 20732007), the NBRP (2007CB808001), and the Science and Technology Commission of Shanghai Municipality (09XD1405300) for financial support.