Kinetics of basic hydrolysis of tris (1,10-phenanthroline) iron(11) in Triton X 100/hexanol/water reverse micelles in cyclohexane
DSpace at IIT Bombay
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Title |
Kinetics of basic hydrolysis of tris (1,10-phenanthroline) iron(11) in Triton X 100/hexanol/water reverse micelles in cyclohexane
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Creator |
SARKAR, DEEPA
KHILAR, KC GOUSIA BEGUM SUBBARAO, PV |
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Subject |
complexation
hydrocarbons hydrolysis iron compounds |
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Description |
The kinetic study of dissociation of the complex tris (1,10-phenanthroline) iron(11) in the presence of OH- ion has been carried out in the water pools of non-ionic reverse micelles of Triton X 100, hexanol in cyclohexane. The reaction shows completely different kinetic features at low and high W values. The pseudo first order rate constant (kobs) varies linearly with the effective concentration of sodium hydroxide in the water pool ([OH-]e) at high values of W (W = 14.0 and 10.6), on decreasing W, the kobs versus [OH-]e plots concave upwards showing higher order dependence of kobs on [OH -]e. The kinetics has been accounted for by a mechanism involving intermediate ion-pair formation between oppositely charged ions. The significant increase in rate in reverse micellar media as compared to aqueous media is due to the lower micropolarity of the waterpools in this reverse micellar media, which facilitates the ion-pair formation between oppositely charged ions.
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Publisher |
Elsevier
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Date |
2009-02-17T12:05:05Z
2011-11-25T17:05:56Z 2011-12-26T13:05:57Z 2011-12-27T05:53:54Z 2009-02-17T12:05:05Z 2011-11-25T17:05:56Z 2011-12-26T13:05:57Z 2011-12-27T05:53:54Z 2005 |
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Type |
Article
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Identifier |
Colloids and Surfaces A: Physicochemical and Engineering Aspects 268(1-3), 73-77
0927-7757 http://dx.doi.org/10.1016/j.colsurfa.2005.05.062 http://hdl.handle.net/10054/671 http://dspace.library.iitb.ac.in/xmlui/handle/10054/671 |
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Language |
en
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