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(a) The interdigitation of symmetry-related (and heavily corrugated) 2D layers of compound 1. The orientation of the crystal axes (not to scale) is also shown (bottom left). The double arrow addresses the length of the a–c vector (18 Å) corresponding to two corrugated layers; (b) AFM characterization of drop-casted nanosheets of 1: topographic image and, in the inset, cross-sectional height profiles, showing that flat or terraced nanosheets are formed, with ca. 9 Å steps.
