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<p>Here we report on the diverse self-assembly behavior of aminothiacalix[4]arene (ATCA) drop-casted or spin-coated onto a silicon substrate. The nanofilms of ATCA feature the picket-fence domains composed of rod-shaped crystals with the mean size of ca. 700&#xa0;nm, as well as the ornate patterns composed of interdigitating 3.5-µm grooves and periodically alternating ridge-like framework, with the ridge diameter 90 ± 20&#xa0;nm and ridge spacing of ca. 3.5&#xa0;μm. DFT calculation of possible ATCA dimers revealed a favorable arrangement of ATCA monomers either in a face parallel fashion expanding into the 1D channel structure or in a face antiparallel fashion affording the 1D zigzag chain structure. UV/Vis spectroscopy and powder X-ray diffraction data provided further evidence to the existence of thermodynamically favorable π-stacked and hydrogen-bonded ATCA associates in solution and solid state.</p> Graphical Abstract <p></p>

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AFM and DFT study of diverse self-organization pattern of aminothiacalix[4]arene

  • 期刊论文

  • 发表日期：

    2025年2月19日

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  • Sergey A. Karalash,
  • Anna A. Botnar,
  • Aleksandr S. Aglikov,
  • Ekaterina A. Muraveva,
  • Dmitry A. Kozodaev,
  • Alexander S. Novikov,
  • Ekaterina V. Skorb,
  • Anton A. Muravev

摘要

Here we report on the diverse self-assembly behavior of aminothiacalix[4]arene (ATCA) drop-casted or spin-coated onto a silicon substrate. The nanofilms of ATCA feature the picket-fence domains composed of rod-shaped crystals with the mean size of ca. 700 nm, as well as the ornate patterns composed of interdigitating 3.5-µm grooves and periodically alternating ridge-like framework, with the ridge diameter 90 ± 20 nm and ridge spacing of ca. 3.5 μm. DFT calculation of possible ATCA dimers revealed a favorable arrangement of ATCA monomers either in a face parallel fashion expanding into the 1D channel structure or in a face antiparallel fashion affording the 1D zigzag chain structure. UV/Vis spectroscopy and powder X-ray diffraction data provided further evidence to the existence of thermodynamically favorable π-stacked and hydrogen-bonded ATCA associates in solution and solid state.

Graphical Abstract