English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 57023/90721 (63%)
造訪人次 : 12427752      線上人數 : 46
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/77226

    題名: Gearing of Molecular Swirls: Columnar Packing of Nematogenic Hexakis(4-alkoxyphenylethynyl)benzene Derivatives
    作者: 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
    貢獻者: 淡江大學化學學系
    關鍵詞: columnar suprastructures;helical structures;liquid crystals;molecular swirls;scanning tunnelling microscopy
    日期: 2011-01-17
    上傳時間: 2012-06-14 09:06:56 (UTC+8)
    出版者: Weinheim: Wiley - V C H Verlag GmbH & Co. KGaA
    摘要: 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.
    關聯: Chemistry-A European Journal 17(3), pp.792-799
    DOI: 10.1002/chem.201002975
    顯示於類別:[化學學系暨研究所] 期刊論文


    檔案 描述 大小格式瀏覽次數
    1521-3765_17(3)p792-799.pdf1213KbAdobe PDF192檢視/開啟



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