Fig. 3: Analysis of the TEM image of the helical supramolecule. | Nature Communications

Fig. 3: Analysis of the TEM image of the helical supramolecule.

From: Enantioselectivity of discretized helical supramolecule consisting of achiral cobalt phthalocyanines via chiral-induced spin selectivity effect

Fig. 3

a A representative cross-sectional image of the reconstructed 3D topogram of the helical supramolecule. Clear stripe patterns are captured along 1D axis. The white scale bar represents 100 nm. b The fast Fourier transform (FFT) pattern of the yellow-highlighted area in (a), clearly showing several pairs of spots that are well separated from each other. White circles represent Q1 and Q2 spots, and yellow ones do higher order spots of Q3 and Q4. The scale bar represents 0.5 Å−1. The resolution in the FFT pattern is estimated to be 6.5 × 10−3 Å−1. c An enlarged image of b indicated by a gray-dashed line. d, e Additional FFT analysis for two squared regions in (a). FFT patterns of position 1 (d) and position 2 (e) exhibit either Q1 or Q2 spots, respectively. The insets in (d) and (e) show inverse FFT images restored from the corresponding pair of spots, displaying the periodic domains along noticeably different directions.

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