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Updated: Jul 14, 2026

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles
Published on: May 8, 2015
Two alternating BEDT-TTF packing motifs in alpha-kappa-(BEDT-TTF)2Hg(SCN)3
John A Schlueter1, Urs Geiser, Michael A Whited
1Materials Science Division, Argonne National Laboratory, Argonne, IL 60439-4831, USA. JASchlueter@anl.gov
Abstract:
The first BEDT-TTF charge transfer salt in which alternating electron-donor layers possess alpha- and kappa-type packing motifs has been synthesized. The crystal structure and physical properties of the organic conductor alpha-kappa-(BEDT-TTF)2Hg(SCN)3 are described, including a detailed description of its optical properties. The electronic behavior is dominated by a sharp metal-to-insulator transition at T = 176 K which is due to a first-order structural phase transition. The optical properties in the metallic regime are a superposition of those of the alpha- and kappa-phases, while in the insulating state the spectra become more anisotropic in the conducting plane, and the features of the two layers cannot be distinguished.
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