Volume 18, Issue 49 (No.3&4-صفحات انگلیسی از 123 تا 140 2006)
2006, 18(49): 129-140 |
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Spectophotometric Study of Charge-transfer Complexes of Iodine with Tetrbutylammonium Halides in Chloroform Solution. Journal title 2006; 18 (49) :129-140
URL: http://jsci.khu.ac.ir/article-1-1172-en.html
URL: http://jsci.khu.ac.ir/article-1-1172-en.html
Abstract: (6070 Views)
The Complex formation reaction between iodine with tetrabutylammonium halides (TBAX) has been studied spectrophotometrically in chloroform solution at 25ºC. Various aspects of the spectra of iodine in the presence of various concentration of different tetrabutylammonium halides have been discussed in terms of electronic specifications of iodine and halides. In the case of tetrabutylammonium iodide and at high concentrations of iodine, both 1:1 (I3-) and 2:1 (I5-) complexes have been formed. Formation constants of charge transfer complexes were evaluated from the computer fitting of the absorbance-mole ratio data and found to vary in the order: TBAI>TBABr>TBACl>TBAF.
Keywords: Terabutylammonium halides, Charge-transfer complexes, Iodine, Chloroform, Spectrophotometr
Published: 2006/11/15
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