名称:
X-ray crystal structure and electrical conductivity of [Pt(2,2′-bipyridine)(C8H4S8)][BF4] [C8H4S82−=2-{(4,5-ethylenedithio)-1,3-dithiole-2-ylidene}-1,3-dithiole-4,5-dithionate(2-)]
摘要:
[Pt(bpy)(C8H4S8)][BF4] (bpy = 2,2'-bipyridine: C8H4S82- = 2-{(4,5-ethylenedithio)-1,3-dithiole-2-ylidene}-1,3-dithiole-4,5-dithionate(2-)) was prepared by current-controlled electrolysis of a dichloromethane solution of [Pt(bpy)(C8H4S8)] with [NEt4][BF4] as an electrolyte. The X-ray crystal structure analysis revealed a columnar stacking of the one-electron oxidized, cationic moieties with some S-S non-bonded contacts (< 3.7 Angstrom) as well as an S-S layered interaction in another direction. The electrical conductivity measured for a compacted pellet was 5.0 x 10(-3) S cm(-1) at room temperature with activation energy of 0.05 eV. The energy band calculation of the oxidized species showed an essentially one-dimensional electron-conduction through the column. (C) 2002 Elsevier Science B.V. All rights reserved.
DOI:
10.1016/s0020-1693(02)00844-7