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Studies on ion-pairing effects of the kinetics of aquation of bromopentaammine cobalt(III) complex in malonate media
Farah Samih Zeitouni (1)
, Gehan Moustafa El-Subruiti (2) , Ghassan Omar Younes (3) , Mohammad Fawzi Amira (4,*) (1) Chemistry Department, Faculty of Science, Beirut Arab University, Riad El-Solh, Beirut-11-5020, Lebanon
(2) Chemistry Department, Faculty of Science, Alexandria University, Ibrahimia, Alexandria-21321, Egypt
(3) Chemistry Department, Faculty of Science, Beirut Arab University, Riad El-Solh, Beirut-11-5020, Lebanon
(4) Chemistry Department, Faculty of Science, Alexandria University, Ibrahimia, Alexandria-21321, Egypt
(*) Corresponding Author
Received: 13 Apr 2011 | Revised: 27 Jun 2011 | Accepted: 05 Jul 2011 | Published: 31 Dec 2011 | Issue Date: December 2011
Abstract
The aquation of bromopentaamminecobalt(III) ion in the presence of ion-pairing malonate anion in mixed solvent media of water with tert-butanol (10%-50%) v/v have been investigated spectrophotometrically at different temperatures (30-60 oC). Nonlinear plots of Log (kip) ion-pair rate constants against the reciprocal of the dielectric constant D, Log of water concentration and Grunwald-Winstein Y values were found. The thermodynamic and extrathermodynamic analyses of the kinetic data have been discussed in terms of solvent effect on the ion-pair aquation reactions. The obtained isokinetic temperatures of these systems indicate the existence of compensation effect arising from solute-solvent interaction. The extrema found in the change of ∆Hip* and ∆Sip*with the mole fraction of the co-solvent can be attributed to the change of the physical properties of the solvent-water mixture with the solvent structure. Application of a free energy cycle is performed to compare between the stability of the initial and the transition state of the complex. However, small changes in ∆Gip*with the mole fraction of the co-solvent was found, indicating a compensating effects between ∆Hip* and ∆Sip*
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European Journal of Chemistry
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DOI: 10.5155/eurjchem.2.4.489-494.440
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Beirut Arab University, Faculty of Science, Chemistry Department, Beirut-11-5020, Lebanon
Citations
[1]. Farah Samih Zeitouni, Mohammad Fawzi Amira, Gehan Moustafa El-Subruiti, Ghassan Omar Younes
Comparison of the leaving groups during the study of the aquation of halopentaammine cobalt(III) complex in tartarate at different percentage of tert-butanol
European Journal of Chemistry 9(3), 228, 2018
DOI: 10.5155/eurjchem.9.3.228-235.1728
[2]. Farah Samih Zeitouni, Jinane Kamal Chaaban, Ramzi Kassem Hamed
Kinetic studies of ion-pairing effects on the aquation of chloropentaammine cobalt(III) complex in different dicarboxylate media at 30% of tert-butanol
European Journal of Chemistry 8(3), 273, 2017
DOI: 10.5155/eurjchem.8.3.273-278.1609
References
[1]. Shaban, N. Z.; El-Subruiti, G. M. Alex. J. Pharm. Sci. 1992, 6(1), 79-82.
[2]. Shaban, N. Z.; El-Subruiti, G. M. J. Pest. Control and Environ. Sci. 1990, 2, 91-102.
[3]. Belkov, V. M.; Krynetskaya, N. F.; Shabarova, Z. A.; Novodarova, G. N.; Volpin, M. E. Russ. Chem. Bull, 1996, 45(8), 2008-2011.
http://dx.doi.org/10.1007/BF01457797
[4]. Naik, N. C.; Nanda, R. K. J. Inorg. Nucl. Chem. 1974, 36, 3793-3800.
http://dx.doi.org/10.1016/0022-1902(74)80167-3
[5]. Naik, N. C.; Nanda, R. K. J. Indian Chem. Soc. 1976, 53(2), 149-156.
[6]. Jones, T. P.; Phillips, J. K. J. Chem. Soc. 1968, 674-679.
[7]. Amira, M. F.; Abdel-Halim, F. M.; El-Semongy M. M. J. Electro. Chem. Soc. India 1982, 31, 597-605.
[8]. El-Naggar, G. A.; Seleim, S. M.; Zaghloul, A. A.; Amira, M. F. Z. Phys. Chem. 2002, 216, 1239-1260.
[9]. Smith, D.; Amira, M. F.; Abdullah, P. B.; Monk, C. B. J. Chem. Soc. Dalton Trans. 1983, 2, 337-342.
http://dx.doi.org/10.1039/dt9830000337
[10]. Amira, M. F.; Abdel-Halim, F. M.; El-Semongy, M. M. J. Indian Chem. Soc. 1983, 60, 347-353.
[11]. Wyatt, P. A. H.; Davies, C. W. Trans. Faraday Soc. 1949, 45, 774-780.
http://dx.doi.org/10.1039/tf9494500774
[12]. Hunt, H. R.; Taube, H. J. Am. Chem. Soc. 1958, 80, 2642-2646.
http://dx.doi.org/10.1021/ja01544a011
[13]. Hynes, A.; Yanowski, L. K.; Shiller, M. J. Am. Chem. Soc. 1938, 60, 3053-3054.
http://dx.doi.org/10.1021/ja01279a064
[14]. Tommila, E.; Pakkala, E.; Virtanen, W.; Erra, A.; Varila, S. Ann. Acad. Sci. 1959, AII, 91-93.
[15]. Elgy, C. N.; Wells, C. F. J. Chem. Soc. Dalton Trans. 1982, 8, 1617-1620.
http://dx.doi.org/10.1039/dt9820001617
[16]. Zaghloul, A. A. Egypt J. Chem. 1991, 34, 529-536.
[17]. Reichardt, C. Solvent and solvent effects in organic chemistry, 3rd Edition, VCH, Federal Republic of Germany, 2003.
[18]. Akerlof, G. J. Amer. Chem. Soc. 1932, 54, 4125-4139.
http://dx.doi.org/10.1021/ja01350a001
[19]. El-Subruiti, G. M.; Younes, G. O.; Zeitouni, F. S.; Amira, M. F. Int. J. Chem. Kinet. 2004, 36, 494-499.
http://dx.doi.org/10.1002/kin.20021
[20]. El-Subruiti, G. M.; Younes, G. O.; Zeitouni, F. S.; Amira, M. F. Int. J. Chem. Kinet. 2008, 40, 416-422.
http://dx.doi.org/10.1002/kin.20324
[21]. Laidler, K. J.; Landskroener, P. A. Trans. Faraday Soc. 1956, 52, 200-210.
http://dx.doi.org/10.1039/tf9565200200
[22]. Elsemongy, M. M; Amira M. F. J. Indian Chem. Soc. 1980, 57, 506-511.
[23]. Elgy, C. N.; Wells, C. F. J. Chem. Soc. Faraday Trans. 1983, 79, 2367-2376.
http://dx.doi.org/10.1039/f19837902367
[24]. Eid, A. E.; Wells, C. F. J. Chem. Soc. Faraday Trans. 1981, 1, 77, 1621-1628.
[25]. Groves, G. S.; Wells, C. F. J. Chem. Soc. Faraday Trans. 1982, 1, 78, 619-626.
[26]. Elgy, C. N.; Wells, C. F. J. Chem. Soc. Dalton Trans. I 1980, 12, 2405-2409.
[27]. Jones, W. E.; Casey, L. R.; Swaddle, T. W. Can. J. Chem. 1972, 50, 2739-2746.
http://dx.doi.org/10.1139/v72-440
[28]. Palmer, D. A.; Kelm, H. Coord. Chem. Rev. 1981, 36, 89-94.
http://dx.doi.org/10.1016/S0010-8545(00)80506-8
[29]. Wells, C. F. J. Chem. Soc., Faraday Trans. 1975, 71, 1868-1875.
http://dx.doi.org/10.1039/f19757101868
[30]. Sidahmed, I. M.; Wells, C. F. J. Chem. Soc. Dalton Trans. 1981, 10, 2034-2038.
http://dx.doi.org/10.1039/dt9810002034
[31]. El-Subruiti, G. M. J. Solution Chem. 2002, 31(5), 415-423.
http://dx.doi.org/10.1023/A:1015863416229
[32]. El-Subruiti, G. M.; Fathalla, M. F.; El-Marasi, Y. R. Int. J. Chem. Kinet. 2011, 43, 230-237.
http://dx.doi.org/10.1002/kin.20535
[33]. Younes, G. O.; Jaber, M. M.; El-Subruiti, G. M. Prog. React. Kinet. Mec. 2011, 36, 73-82.
http://dx.doi.org/10.3184/146867810X12910391510755
[34]. Fathalla, M. F.; El-Subruiti, G. M.; El-Marasi Y. R. Prog. React. Kinet. Mec. 2009, 14, 169-183.
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DOI Link: https://doi.org/10.5155/eurjchem.2.4.489-494.440
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European Journal of Chemistry 2011, 2(4), 489-494 | doi: https://doi.org/10.5155/eurjchem.2.4.489-494.440 | Get rights and content
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