Abstract
A new cation-radical salt (ET)4[Hg2I6] (1), where ET is bis(ethylenedithio)tetrathiafulvalene, has been synthesized in the system ET-HgI3 −-PhCl. An X-ray study of 1 (a=41.02(5),b=23.01(1),c=8.233(2) Å,V=7772(3) Å3, space groupPc21 b,Z=4,d calc=2.308 g cm−3) has established its composition, chemical formula, and the main structural features. The ET cation-radicals are packed in the conducting layer, the type of packing is α″; the [Hg2I6]2− anion has a dimeric structure. The temperature dependence of the conductivity of the (ET)4[Hg2I6] crystals (σ300=6 Ohm−1 cm−1) has a semiconducting character.
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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1240–1244, July, 1994.
We thank M. G. Kaplunov for his participation in the discussion of the obtained results.
This work was financially supported by the Scientific Council on the Problems of High-Temperature Superconductivity (Grant No. 90346 “Metallorg”) and the Russian Foundation for Basic Research (Project No. 93-02-2384).
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D'yachenko, O.A., Gritsenko, V.V., Shilov, G.V. et al. Synthesis and crystal structure of an organic semiconductor (ET)4[Hg2I6]. Russ Chem Bull 43, 1175–1179 (1994). https://doi.org/10.1007/BF00698238
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DOI: https://doi.org/10.1007/BF00698238