The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

  
       
         
    STUDIA PHYSICA - Issue no. SPECIAL%20ISSUE / 2001  
         
  Article:   PROTON NMR SPECTROSCOPY STUDIES OF THE INCLUSION COMPLEX OF NIFLUMIC ACID WITH  - CYCLODEXTRIN.

Authors:  M. BOGDAN, S.I. FARCAS, MINO R. CAIRA. 		 
       
         
  Abstract:  The inclusion complex of niflumic sodium salt with -cyclodextrin has been studied by proton NMR at 300 MHz. The continuous variation technique was used to evidence the formation of a 1:1 complex in aqueous solution at pH = 12. The association constant of the niflumic Na salt with -cyclodextrin has been obtained at 298 K, by fitting the experimental chemical shift difference, obs = obs - free, (for a given proton) of the observed guest or host molecule, with a non-linear regression method. Besides the effective association constant, the fitting procedure allows a precise determination of all NMR parameters of the pure inclusion complex which are used for an analysis of the geometry of the molecular edifice in solution.  
         
     
         
         
      Back to previous page