English  |  正體中文  |  简体中文  |  Items with full text/Total items : 76531/76531 (100%)
Visitors : 29752278      Online Users : 282
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU 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://ir.lib.ncu.edu.tw/handle/987654321/5895

    Title: 一、液相合成carbolinone衍生物 二、有機雜環液晶之合成與探討
    Authors: 施英凱;Ying-Kai Shih
    Contributors: 化學研究所
    Keywords: 有機雜環液晶;液相合成;carbolinone
    Date: 2002-12-25
    Issue Date: 2009-09-22 10:09:47 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 中文摘要 組合式化學的發展,使得以往需要花費大量時間及大量人力的藥物開發過程,減少了許多的時間及人力成本,近年來組合式化學更被應用於藥物開發的其他領域,因此了解組合式化學,是現在學化學的人,不能不做的功課。 而以carbolin為主體的化合物,不論是存在於自然界中的,或者被合成出來的,都被發現並證明具有藥物的性質。在本篇論文裡,我們用了一個新的方法來合成Tetrahydro-β-carbolinone的化合物,並可藉著改變其氮原子上的取代基,來合成一系列的衍生物。 而第二部分則是簡略的介紹了關於液晶的發展,及液晶分子的形成、分類和它的應用。 我們並以Triazole這個五環為主體,合成了一個新的桿狀液晶,且利用NMR、元素分析來鑑定分的的結構及純度,最後再用DSC及偏光顯微鏡來探討它的液晶相的溫度範圍、相的變化及紋理圖。 ABSTRACT Natural and synthetic products having the carboline structure often exhibit important medicinal properties. In the thesis, we synthesize the Tetrahydro -β-carbolinone derivatives by a new method. And we can change it’s alkyl group which is on the N atoms of Tetrahydro-β-carbolinone. The part two in the thesis describes the synthesis of a new rodlike liquid crystal which is triazole-based. These compounds were characterized by 1H- and 13C-NMR spectroscopy and elemental analysis. The mesomorphic properties of these compounds was characterized and studied by different scanning calorimetry(DSC) and polarized optical microscope.
    Appears in Collections:[化學研究所] 博碩士論文

    Files in This Item:

    File SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 隱私權政策聲明