| Autor: |
D'yachenko, O. A., Gritsenko, V. V., Mkoyan, Sh. G., Shilov, G. V., Atovmyan, L. O. |
| Zdroj: |
Russian Chemical Bulletin; September 1991, Vol. 40 Issue: 9 p1825-1832, 8p |
| Abstrakt: |
X-ray structural analysis has revealed that reaction of (BEDT-TTF)[HgCl3]- with PhCl leads to the formation of a cation-radical salt (BEDT-TTF)4[Hg2Cl6]· PhCl, which exhibits a laminar crystal structure. The cationic layer is characterized by a grid or lattice network of contracted S...S intermolecular distances (3.396(4)–3.647(5) Å), which unite the BEDT-TTF cations in ribbons or bands, parallel to the [014] direction, and which also bind the ribbons together in a direction close to the [010] axis. The presence of this type of lattice network explains the metallic nature of the conductivity of this salt (BEDT-TTF)4Hg2Cl6]·PhCl in the temperature range 300.0–1.5 K, and is the basis of assigning this salt to a new class of organic, two-dimensional conductors. The [Hg2Cl6]2- anions and PhCl solvent molecules are united via secondary Hg...Cl 3.176(5) Å and Cl...Cl 3.480(6) Å interaction forces to form centrosymmetric tetramers [Hg2Cl6PhCl]24-, stretched out along the [014] axis direction. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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