Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/190207
Title: | Mixed-valence gold bis (diselenolene) complex turning metallic under pressure. |
Author: | Le Gal, Yann Cui, Hengbo Alemany i Cahner, Pere Canadell, Enric, 1950- Kato, Reizo Roisnel, Thierry Dorcet, Vincent Fourmigué, M. Lorcy, Dominique |
Keywords: | Or Semiconductors Pressió Gold Semiconductors Pressure |
Issue Date: | 8-Aug-2021 |
Publisher: | Royal Society of Chemistry |
Abstract: | While oxidation of d8 anionic gold bis(dithiolene) complexes most often affords the corresponding neutral radical single-component conductor, an original gold bis(diselenolene) complex isolated as a Ph4P+ salt affords upon electrocrystallization a mixed-valence 1 : 2 salt, [Ph4P][Au(Me-thiazds)2]2 (Me-thiazds: 2-methyl-1,3-thiazoline-2-thione-4,5-diselenolate). This salt exhibits a rare charge alternation associated with the simultaneous presence of both cis and trans isomers of the gold complex in the conducting layers. The salt is semiconducting (σRT = 3 × 10−2 S cm−1, Eact = 0.137 eV) but, in contrast with other 1 : 2 gold bis(dithiolene) salts, turns metallic under pressure (>10 GPa). [Ph4P][Au(Me-thiazds)2]2 is thus the first metallic, fully characterized, 1 : 2 mixed-valence gold complex, opening the door for the preparation of highly conducting solids of this type. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1039/d1tc02751d |
It is part of: | Journal of Materials Chemistry C, 2021, vol. 9, num. 36, p. 12291-12302 |
URI: | http://hdl.handle.net/2445/190207 |
Related resource: | https://doi.org/10.1039/d1tc02751d |
ISSN: | 2050-7526 |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) Articles publicats en revistes (Institut de Química Teòrica i Computacional (IQTCUB)) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
724949.pdf | 3.22 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.