Preparation, structure and physical properties of the 1:1 1,3,6,8-tetrakis(ethylthio)pyrene-DDQ complex
學年 83
學期 2
出版（發表）日期 1995-03-15
作品名稱 Preparation, structure and physical properties of the 1:1 1,3,6,8-tetrakis(ethylthio)pyrene-DDQ complex
作品名稱（其他語言） 1 : 1之1, 3, 6, 8-Tetrakis(ethylthio)pyrene-DDQ錯合物的製備、結構和物性
著者 李榮熹; Lee, J. S.; Huang, K. C.; 王文竹; Wang, Wen-jwu; Wang, J. L.
單位 淡江大學化學學系
出版者 Lausanne: Elsevier S.A.
著錄名稱、卷期、頁數 Synthetic metals 70(1-3), pp.1227-1228
摘要 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.
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語言 en
ISSN 0379-6779
期刊性質 國外
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國別 CHE
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出版型式 紙本
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