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