Neelgund, Gururaj M and Kulkarni, Abhay S and Budni, ML (2004) EDA Complexes of 2,3-Dichloro-1,4-naphthoquinone with Some Substituted Anilines. In: Monatshefte für Chemie / Chemical Monthly, 135 (4). pp. 343-355.
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Electron donor-acceptor (EDA) complexes of several substituted anilines with the pi-acceptor 2,3-dichloro-1,4-naphthoquinone (DClNQ) in chloroform, dichloromethane, and 1,2-dichloroethane were studied by a spectrophotometric method. Experimental data has been shown to confirm the 1:2 stoichiometry of the acceptor-donor in spite of the apparent linearity of the Benesi-Hildebrand plot for a 1:1 complex. The calculated values of oscillator strengths, transition moments, and thermodynamic parameters confirms the 1:2 (A:D) stoichiometry of the complexes. The formation constants and molar absorptivities for these AD(2) complexes have been evaluated. The stoichiometry was unaffected by the variation of the temperature over a small interval and also by the change in polarity of the solvent. The order of the donor strength followed the sequence: N-benzylaniline > p-chloroaniline > m-chloroaniline > o-chloroaniline.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Springer-Verlag.|
|Keywords:||EDA complex;CT-Complexes;2,3-Dichloro-1,4-naphthoquinone (DClNQ);Spectrophotometric;Thermodynamic.|
|Department/Centre:||Division of Chemical Sciences > Materials Research Centre|
|Date Deposited:||18 Dec 2008 12:12|
|Last Modified:||19 Sep 2010 04:54|
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