Hierarchical Hybrid Nanostructures Constructed by Fullerene and Molecular Tweezer

Minwook Park, Kyeong Im Hong, Minji Kang, Tae Wook Kim, Hosoowi Lee, Woo Dong Jang, Kwang Un Jeong

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2 Citations (Scopus)

Abstract

For the construction of well-defined hierarchical superstructures of pristine [60]fullerene (C60) arrays, pyrene-based molecular tweezers (PT) were used as host molecules for catching and arranging C60 guest molecules. The formation of host-guest complexes was systematically studied in solution as well as in the solid state. Two-dimensional proton nuclear magnetic resonance spectroscopic studies revealed that PT-host and C60-guest complexes were closely related to the molecular self-assembly of PT. Ultraviolet and fluorescence spectroscopic titrations indicated the formation of stable 1:1 and 2:1 (PT/C60) complexes. From the nonlinear curve-fitting analysis, equilibrium constants for the 1:1 (log K1) and 2:1 (log K2) complexes were estimated to be 4.96 and 5.01, respectively. X-ray diffraction results combined with transmission electron microscopy observations clearly exhibited the construction of well-defined layered superstructures of the PT-host and C60-guest complexes. From electron mobility measurements, it was demonstrated that the well-defined hierarchical hybrid nanostructure incorporating a C60 array exhibited a high electron mobility of 1.7 × 10-2 cm2 V-1 s-1. This study can provide a guideline for the hierarchical hybrid nanostructures of host-guest complex and its applications.

Original languageEnglish
Pages (from-to)6101-6112
Number of pages12
JournalACS Nano
Volume13
Issue number5
DOIs
Publication statusPublished - 2019 May 28

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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    Park, M., Hong, K. I., Kang, M., Kim, T. W., Lee, H., Jang, W. D., & Jeong, K. U. (2019). Hierarchical Hybrid Nanostructures Constructed by Fullerene and Molecular Tweezer. ACS Nano, 13(5), 6101-6112. https://doi.org/10.1021/acsnano.9b02893