English  |  正體中文  |  简体中文  |  Items with full text/Total items : 49279/83828 (59%)
Visitors : 7146709      Online Users : 79
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: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/77226


    Title: Gearing of Molecular Swirls: Columnar Packing of Nematogenic Hexakis(4-alkoxyphenylethynyl)benzene Derivatives
    Authors: Lee, Shern-long;Lin, Hsing-an;Lin, Yi-hui;Chen, Hsiu-hui;Liao, Ching-ting;Lin, Tzu-ling;Chu, Yi-chen;Hsu, Hsiu-fu;Chen, Chun-hsien;Lee, Jey-jau;Hung, Wen-yi;Liu, Qu-yuan;Wu, Chunhung
    Contributors: 淡江大學化學學系
    Keywords: columnar suprastructures;helical structures;liquid crystals;molecular swirls;scanning tunnelling microscopy
    Date: 2011-01-17
    Issue Date: 2012-06-14 09:06:56 (UTC+8)
    Publisher: Weinheim: Wiley - V C H Verlag GmbH & Co. KGaA
    Abstract: Through molecular design and straightforward synthesis, incorporating an additional alkoxy chain onto various numbers of peripheral phenyls in nematogenic hexakis(4-alkoxyphenylethynyl)benzene was achieved to generate columnar phases with significantly expanded temperature ranges. For the compound with two decyloxy chains on every peripheral phenyl, scanning tunnelling microscopic studies indicate the molecule adopts a preferred molecular-swirl geometry by restricting the conformational arrangement of the alkoxy side chains. Cooperative packing of the molecular swirls by a lock-in mechanism among columns results in a stable helical column packing evidenced by powder X-ray diffraction.
    Relation: Chemistry-A European Journal 17(3), pp.792-799
    DOI: 10.1002/chem.201002975
    Appears in Collections:[化學學系暨研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat
    1521-3765_17(3)p792-799.pdf1213KbAdobe PDF151View/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