English  |  正體中文  |  简体中文  |  Items with full text/Total items : 6047/14565 (42%)
Visitors : 13616084      Online Users : 330
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: https://ir.fy.edu.tw:8080/ir/handle/987654321/18401


    Title: Determination of the pKa of Benzophenones by Capillary Zone Electrophoresis
    Authors: Shiung, Yuan?Chi;Chen, Chih?Yu;Wu, Jong?Chang;Chang, Shu?Wen;Lin, Chen?Hsing
    Contributors: 輔英科技大學 應用化學及材料科學系
    Keywords: Spiropyran;β-cyclodextrin polymer;Response surface methodology;Quantum chemistry calculation
    Date: 2017-12-21
    Issue Date: 2018-09-03 17:02:17 (UTC+8)
    Abstract: Electrophoretic behavior of seven benzophenones as a function of the buffer pH was investigated, and their pKavalues were determined by capillary zone electrophoresis. The determination of pKa?allows us to rationalize the influence of the buffer pH on the migration behavior of benzophenones. The results reveal that both the presence of intramolecular hydrogen bond and the favorable π?electronic delocalization decrease the degree of the acid dissociation of the hydroxyl groups of hydroxybenzophenones. However, the introduction of a hydroxyl group at the 4?position or at the 2′?position of the aromatic ring of hydroxybenzophenones would decrease greatly their pKa1?values. Thus the presence of this type of hydrogen bonding also plays an important role in the acid dissociation of these hydroxybenzophenones.
    Relation: Journal of the Chinese Chemical ,Volume65, Issue4 , April 2018, Pages 465-471
    Appears in Collections:[應用化學及材料科學系] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML351View/Open


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


    本網站典藏內容為學術研究目的之提供,請尊重著作權人之權益合理使用,請勿任意重製、轉貼、改作及散佈。

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