Loading...
|
Please use this identifier to cite or link to this item:
https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/25147
|
Title: | Preparation, structure and physical properties of the 1:1 1,3,6,8-tetrakis(ethylthio)pyrene-DDQ complex |
Other Titles: | 1 : 1之1, 3, 6, 8-Tetrakis(ethylthio)pyrene-DDQ錯合物的製備、結構和物性 |
Authors: | 李榮熹;Lee, Jung-Si;Huang, Kuo-Chih;王文竹;Wang, Wen-jwu;Wang, Jim-Lung |
Contributors: | 淡江大學化學學系 |
Date: | 1995-03-15 |
Issue Date: | 2009-12-01 |
Publisher: | Lausanne: Elsevier S.A. |
Abstract: | Two phases of 1:1 1,3,6,8-tetrakis(ehylthio)pyrene (TEPY) complex with 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) have been isolated from a equi-molar mixture of TEPY and DDQ in dichloromethane by slow evaporation of the solvent. The α phase is obtained as black, branchy microcrystals and the β phase large black platelets. Both polymorphs are diamagnetic at room temperature and, in solutions, exhibit very similar electronic absorption spectra. However, their IR spectra are very different; the α phase gives broad bands while the β phase sharp peaks. The room-temperature conductivity is 0.13 and 3.0×10−6 S cm−1, respectively for the α and the β modification. The β phase crystallizes in the triclinic space group P1, with a=9.172(4), b=9.596(2), c=9.820(2)Å, α=72.60(2), β=75.89(3), γ=67.12(3)•, Z=1. The crystal structure consists of nearly planar TEPY and DDQ molecules stacking alternately along the c axis, consistent with the low conductivity of the β-phase complex. |
Relation: | Synthetic metals 70(1-3), pp.1227-1228 |
DOI: | 10.1016/0379-6779(94)02830-R |
Appears in Collections: | [Graduate Institute & Department of Chemistry] Journal Article
|
Files in This Item:
File |
Description |
Size | Format | |
index.html | | 0Kb | HTML | 357 | View/Open | Preparation, structure and physical properties of the 1 1 1,3,6,8-tetrakis(ethylthio)pyrene-DDQ complex.pdf | | 203Kb | Adobe PDF | 3 | View/Open |
|
All items in 機構典藏 are protected by copyright, with all rights reserved.
|