English  |  正體中文  |  简体中文  |  Items with full text/Total items : 60696/93562 (65%)
Visitors : 1042980      Online Users : 34
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/24906

    Title: Crystal structure and physical properties of 1,3,6,8-tetrakis(ethylthio)pyrene-Qmnt complex
    Other Titles: 1, 3, 6, 8-Tetrakis(ethylthio)pyrene-Qmnt錯合物的晶體結構和物性
    Authors: 李榮熹;Lee, Jung-Si;Huang, Kuo-Chih;王文竹;Wang, Wen-Jwu;Lee, Gene-Hsiang
    Contributors: 淡江大學化學學系
    Date: 1995-03-15
    Issue Date: 2009-12-01
    Publisher: Lausanne: Elsevier S.A.
    Abstract: The 1:1 complex of 1,3,6,8-tetrakis(ehylthio)pyrene (TEPY) and 5,10-dihydro-5,10-dioxobenzo[1,2-b:4,5-b′]bis[1,4]dithiin-2,3,7,8-tetracarbonitrile (Qmnt) has been isolated as needle crystals and its crystal structure determined. The triclinic (P1, Z=1) unit cell data are as follows: a=8.213(3) b=9.542(2), c=12.240(2)Å, α=74.01(1), β=83.64(2), γ=76.94(3)•, V=897.0(4) Å3, Dcal=1.531 g cm−3, R=0.045 for 2348 observed reflections (I>2σ (I)). The centrosymmetric π-donor and π-acceptor, situated with their centers of symmetry at (1/2,0,0) and (0,0,0) respectively, are stacking alternately along the a axis. The solid-state IR spectrum, as well as the dilute-solution UV-VIS spectrum, of the complex is essentially a superposition of the spectra of the parent compounds, indicating that it is a neutral charge-transfer complex. The room-temperature conductivity is low (5.2×10−6 S cm−1, measured on single crystal along the needle axis), as expected for a neutral mixed-stack complex.
    Relation: Synthetic metals 70(1-3), pp.1231-1232
    DOI: 10.1016/0379-6779(94)02832-J
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

    Files in This Item:

    File Description SizeFormat
    Crystal structure and physical properties of 1,3,6,8-tetrakis(ethylthio)pyrene-Qmnt complex.pdf206KbAdobe PDF2View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback