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Electrocrystallization, X-ray structure and electronic properties of the dmit-based salt [MePh3P] [Ni(dmit)2]3
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pullen, Anthony Edward Liu, Hsiang Lin Tanner, David B. Abboud, Khalil A. Reynolds, John R. |
| Copyright Year | 1997 |
| Abstract | Electrooxidation of [Ni(dmit) 2 ] - (dmit=C 3 S 5 2- =4,5-dithiolate-2-thione-1,3-dithiole) in 3:1 acetonitrile–acetone at a Pt wire anode in the presence of methyltriphenylphosphonium bromide electrolyte yields the radical anion salt complex [MePh 3 P][Ni(dmit) 2 ] 3 . Black shiny platelet crystals were harvested. They belong to the monoclinic space group P2 1 /c, M=1631.41, a=21.0872(1), b=17.4930(2), c=15.7203(2) A, β=107.072(1)°, V=5543.4(1) A 3 and Z=4. The crystal packing structure consists of columns of Ni(dmit) 2 units of width one unit separated by columns of MePh 3 P + counter-ions. The Ni(dmit) 2 columns are composed of dimers of Ni(dmit) 2 units with non-bonding interactions with six other pairs of Ni(dmit) 2 units. The arrangement of the dimers with respect to each other in the columns has been seen in other phosphonium-based Ni(dmit) 2 complexes and is similar to the packing of κ-BEDT-TTF radical cation salts which have shown superconductivity. Single-crystal temperature-dependent conductivity measurements have shown that this material is semiconducting with a room-temperature conductivity of 0.1 S cm -1 and a thermal activation energy of 0.22 eV. |
| Starting Page | 377 |
| Ending Page | 380 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/A606026I |
| Alternate Webpage(s) | http://www.phys.ufl.edu/~tanner/PDFS/Pullen97jmc-dmit.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/A606026I |
| Volume Number | 7 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
