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

被引:1
|
作者
Karalash, Sergey A. [1 ]
Botnar, Anna A. [1 ]
Aglikov, Aleksandr S. [1 ]
Muraveva, Ekaterina A. [1 ]
Kozodaev, Dmitry A. [2 ]
Novikov, Alexander S. [1 ]
Skorb, Ekaterina V. [1 ]
Muravev, Anton A. [1 ]
机构
[1] ITMO Univ, Infochem Sci Ctr, 9 Lomonosov Str, St Petersburg 191002, Russia
[2] NT MDT BV, NL-7327 Apeldoorn, Netherlands
关键词
Aminothiacalix[4]arene; Atomic force microscopy; Density functional theory; Energy-dispersive X-ray spectroscopy; RECEPTOR; BINDING;
D O I
10.1007/s10847-025-01285-1
中图分类号
O6 [化学];
学科分类号
0703 ;
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-mu m grooves and periodically alternating ridge-like framework, with the ridge diameter 90 +/- 20 nm and ridge spacing of ca. 3.5 mu m. 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 pi-stacked and hydrogen-bonded ATCA associates in solution and solid state.
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页码:133 / 140
页数:8
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