English  |  正體中文  |  简体中文  |  Items with full text/Total items : 56829/90534 (63%)
Visitors : 12274471      Online Users : 80
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/987654321/61629


    Title: Influence of heteroatom donors on the orders of relative gas-phase binding affinities of macrocyclic polyethers
    Authors: Wu, H.F.;吳慧芬;Brodbelt, J. S.
    Contributors: 淡江大學化學學系
    Keywords: Donor atom;complexation;macrocycle;gas phase
    Date: 1994-10-01
    Issue Date: 2011-10-15 23:23:18 (UTC+8)
    Abstract: The effects of the heteroatom donor on the complexation of various metal ions by macrocyclic polyethers were qualitatively examined by application of the ligand exchange technique in a quadruple ion trap mass spectrometer. The metal ions, including K+, Cs+, Al+, Mg+, Cu+ and Ni+, were generated by laser desorption and allowed to react with 12-crown-4 and its nitrogen and sulfur analogs, cyclen and 1,4,7,10-tetrathiacyclododecane. The orders of gas-phase basicities were established as a comparison. The relative K+ and Cs+ binding affinities of 12-crown-4 are greatest, whereas cyclen has the highest binding affinity for all the other metal ions and also the highest gas-phase basicity.
    Relation: Journal of inclusion phenomena and molecular recognition in chemistry 18(1), pp.37-44
    DOI: 10.1007/BF00706937
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

    Files in This Item:

    File SizeFormat
    index.html0KbHTML87View/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